CN201249795Y

CN201249795Y - Folding mechanism for a child trammer

Info

Publication number: CN201249795Y
Application number: CNU2008201215513U
Authority: CN
Inventors: 徐立宏
Original assignee: JUNSHENG PLASTIC CHILDRENS ARTICLE CO Ltd NINGBO
Current assignee: Max Inf Ningbo Baby Product Co Ltd
Priority date: 2008-07-16
Filing date: 2008-07-16
Publication date: 2009-06-03
Anticipated expiration: 2018-07-16

Abstract

The utility model discloses a folding mechanism for a child trammer which comprises a folding seat (13), a pair of first linking rods (5), a main liking rod (7), a pair of second linking rods (9), a pair of support rods (8), a foot pedal (11) and a support block (6). The pair of first linking rods (5) are respectively articulated with the folding seat (13) and a vehicle frame (14), one end of the main liking rod (7) is connected with the bottom of the folding seat (13), the other end is connected with the foot pedal (11), the support block (6) is sleeved on the main liking rod (7) in a sliding way, one end each of the support rods (8) is articulated with the support block (6), the other end of each of the support rods (8) is articulated with the vehicle frame (14), one end of each of the second linking rods (9) is articulated with the foot pedal (11), and the other end of each of the second linking rods (9) is articulated with the vehicle frame (14). The folding mechanism for the child trammer has simple structure and easy assembly and operation, and is safe and reliable to use.

Description

The retracting mechanism of children trolley

Technical field

The utility model relates to a kind of children trolley, specifically be a kind of retracting mechanism of children trolley.

Background technology

At present, existing children trolley on the market though be equipped with retracting mechanism, has folder function, and its retracting mechanism is many to form with the connecting rod mechanism assembling, and structure is comparatively complicated.

In addition, the retracting mechanism of children trolley causes the children trolley accident to fold easily because of customer's maloperation on the market, thereby can cause personal injury to the children of perambulator the inside.Based on security consideration, the children trolley that has also is provided with the blocking device of retracting mechanism especially.When perambulator launches; blocking device locks the retracting mechanism of perambulator; prevent that maloperation from causing the injury to children; when folding, blocking device is opened, again with Pram folding; though play certain protection; but operate very inconvenient, and blocking device to be independent of retracting mechanism outer and be provided with, increased the productive costs of enterprise.

The utility model content

The technical problems to be solved in the utility model is, overcomes above existing technological deficiency, and all a kind of retracting mechanisms of children trolley simply and easily of a kind of structure, assembling, operation are provided.

The technical solution of the utility model provides a kind of retracting mechanism with following structure, comprise: one folds seat, a pair of first trace, a main trace, a pair of second trace, pair of support rods, a stretcher, with a back-up block, described a pair of first trace respectively with fold the seat and vehicle frame hinged, described main trace one end is connected bottom folding seat, the other end is connected with stretcher, described back-up block slip cap is on main trace, described pair of support rods homogeneous end and back-up block are hinged, the other end and vehicle frame are hinged, a pair of second trace homogeneous end and stretcher are hinged, and the other end and vehicle frame are hinged.

The described seat that folds is by protecgulum with bonnet is removable is formed by connecting, described fold the seat before be covered with a movable carrying handle, be provided with a button that has first card base and second card base that moves in vertical direction in the described button groove that folds on the seat, be provided with a spring of placing in vertical direction in the groove of described button, one end of described spring withstands on the groove top of button, the other end supports to the block that folds in the bonnet with the groove fit of button, described a pair of first trace with fold a pivotally attached one end and be provided with two projections of joining with first card base and the second card base cunning of button.

The both sides of described back-up block be respectively equipped with one can make pair of support rods insert respectively and can with back-up block pivotally attached slot, and in the vertical direction is provided with a pilot hole that main trace is passed, the end that described a pair of second trace and pair of support rods connect to ground respectively is provided with the contiguous block of a monolateral band slot, one end of a pair of second trace, an end of pair of support rods and contiguous block align with the hinged center shaft in four holes that is meant of vehicle frame, and be hinged with rivet or pin then.

During assembling, as long as the carrying handle that is linked in sequence, button, protecgulum, bonnet, spring, a pair of first trace, back-up block, pair of support rods, main trace, a pair of second trace, contiguous block, stretcher are with closing-up together.

When folding, a portable carrying handle is used the depress button again.In the time of press push button, two card bases of button bottom break away from two projections of a pair of first trace downwards, make the band projection end of a pair of first trace that enough revolution spaces be arranged, and when upwards drawing, can slowly close up the purpose that folds; When upwards drawing carrying handle, main trace can drive second trace and stretcher upward movement simultaneously along the pilot hole upward movement of back-up block, under the inside pulling force of a pair of second trace, pair of support rods can haul vehicle frame inwardly closes up, thereby reaches the effect that folds on the whole.

During expansion, two hold the driver, ride on stretcher for one simultaneously, downwards firmly, the vehicle frame that closes up can be launched.Two projections of a pair of first trace that stretch this moment, card base with the button both sides engages once more, and described engaging is meant that the end face of two projections of a pair of first trace tightly is against with two card base end faces of button, a pair of first trace can not be rotated down, play locking action.

After adopting above structure, the utility model retracting mechanism compared with prior art has the following advantages:

1, parts of the present utility model are few; it is simple in structure; the assembling simple and fast; first, second card base of button and the projection of a pair of first trace form lock function; the safety of protection retracting mechanism; it folds, launches only to need on the other hand, and a pin gets final product, and is for the user who holds a baby in one's arms, simple to operate, easy to use.

2, can prevent maloperation, the children inside the perambulator are damaged,, must press the button when drawing carrying handle if want to pack up frame for baby cart, otherwise, can not pack up perambulator, safe and reliable, protectiveness is good; Lock function and closing function are combined, and component structural is simple, is convenient to produce, and has significantly reduced the productive costs of enterprise.

3, the back-up block of centre of the present utility model makes whole retracting mechanism to the directional tagging of main trace, and is stable more, accurate, reliable.

Description of drawings

Fig. 1 is the exploded perspective view of the utility model retracting mechanism.

Fig. 2 is the assembling plan sketch of the utility model retracting mechanism.

Fig. 3 is the utility model retracting mechanism button cross section view.

Shown in the figure

1, bonnet, 1.1, the hole, 1.2, the hole, 1.3, the hole, 1.4, slotted eye, 1.5, the button groove,

2, protecgulum, 2.1, the hole, 2.2, the hole, 2.3, the hole, 2.4, projection,

3, button, 3.1, first card base, 3.2, second card base, 3.3, groove,

4, spring,

5, first trace, 5.1, the hole, 5.2, the hole, 5.3, the hole, 5.4, the hole, 5.5, projection,

5.6, projection,

6, back-up block, 6.1, the hole, 6.2, the hole, 6.3, slot, 6.4, pilot hole,

7, main trace, 7.1, the hole, 7.2, the hole,

8, strut bar, 8.1, the hole, 8.2, the hole, 8.3, the hole, 8.4, the hole,

9, second trace, 9.1, the hole, 9.2, the hole, 9.3, the hole, 9.4, the hole,

10, contiguous block, 10.1, the hole, 10.2, the hole,

11, stretcher, 11.1, the hole, 11.2, the hole, 11.3, the hole, 11.4, slotted eye,

12, carrying handle, 13, fold seat, 14, vehicle frame.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

As Fig. 1, Fig. 2, shown in Figure 3.

The utility model retracting mechanism, comprise: one folds seat 13, a pair of first trace 5, a main trace 7, a pair of second trace 9, pair of support rods 8, a stretcher 11 and a back-up block 6, described a pair of first trace 5 respectively with fold the seat 13 and vehicle frame 14 hinged, described main trace 7 one ends with fold the seat 13 bottoms be connected, the other end is connected with stretcher 11, described a pair of back-up block 6 slip caps are on main trace 7, described pair of support rods 8 is inserted respectively in the slot 6.3 of back-up block 6, and by hole 8.1 and hole 6.1, the coordination hinge in hole 8.3 and hole 6.2, the other end and vehicle frame 14 are hinged, a pair of second trace, 9 one ends are hinged with stretcher 11 respectively, and its other end and vehicle frame 14 are hinged.

The described seat 13 that folds passes through hole 1.1, hole 2.1 by protecgulum 2 and bonnet 1, hole 1.2, hole 2.2, hole 1.3, hole 2.3 cooperate removable being formed by connecting, the described projection 2.4 that folds the protecgulum 2 of seat 13 is provided with a movable carrying handle 12, and with projection 2.4 riveted joints, described a pair of first trace 5 is meant by hole 5.3 and hole 1.2 hole 5.2 and hole 1.1 coordination hinges being connected of seat 13 with folding; With vehicle frame 14 hinged be hinged with vehicle frame 14 by hole 5.1 and hole 5.4.Main trace 7 vertically passes the pilot hole 6.4 of back-up block 6, inserts along the slotted eye 1.4 that folds seat 13 bottoms, and hole 7.1 and hole 1.3, hole 2.3 are connected.Described main trace 7 is connected with stretcher 11 in the slotted eye 11.4 that is meant its underpart insertion stretcher is connected hole 7.2 and hole 11.2; A pair of second trace 9 and pair of support rods 8 and vehicle frame 14 bonded assemblys one end respectively are provided with the contiguous block 10 of a monolateral band slot; Described a pair of second trace 9 passes through hole 9.4, hole 8.4, hole 10.2 with pair of support rods 8 and contiguous block 10, and hole 9.1, hole 8.2, hole 10.1 cooperate back and vehicle frame 14 hinged; Second trace 9 is by hole 9.3, hole 11.3 with the hinged of stretcher 11, hole 9.2, hole 11.1 coordination hinges.

Described hole cooperates and refers to axially cooperate between each hole, be provided with a button 3 that has first card base 3.1 and second card base 3.2 that moves in vertical direction in the described button groove 1.5 that folds on the seat 13, be provided with a spring 4 in vertical direction in the groove 3.3 of described button 3, one end of described spring withstands on the groove top of button 3, the other end support to fold in seat 13 bonnets 1 with block that the groove 3.3 of button 3 cooperates on; Described a pair of first trace 5 with fold seat 13 pivotallys attached one end and be provided with two projections 5.5 and 5.6 of joining with first card base 3.1 and second card bases, 3.2 cunnings of button 3.

Two projections 5.5 of described a pair of first trace 5 and 5.6 with first card base 3.1 of button 3 and second card base 3.2 between engage and be meant, two projections 5.5 of a pair of first trace and 5.6 end face tightly are against with first card base 3.1 and second card base, 3.2 end faces of button, a pair of first trace 5 can not be rotated down, play locking action.

Structure of the present utility model allows various variations, as can not using contiguous block 10, an end of pair of support rods 8 and a pair of second trace 9 directly and vehicle frame 14 hinged etc.These change all in protection domain of the present utility model.

Claims

1, the retracting mechanism of children trolley, it is characterized in that: it comprises that folds a seat (13), a pair of first trace (5), a main trace (7), a pair of second trace (9), pair of support rods (8), a stretcher (11) and a back-up block (6), described a pair of first trace (5) is respectively with to fold seat (13) and vehicle frame (14) hinged, described main trace (7) one ends are connected bottom folding seat (13), the other end is connected with stretcher (11), described back-up block (6) slip cap is on main trace (7), described pair of support rods (8) homogeneous end and back-up block (6) are hinged, the other end and vehicle frame (14) are hinged, second trace (9) homogeneous end and stretcher (11) are hinged, and the other end and vehicle frame (14) are hinged.

2, the retracting mechanism of children trolley according to claim 1, it is characterized in that: the described seat (13) that folds is by protecgulum (2) and removable being formed by connecting of bonnet (1), the protecgulum (2) that folds seat (13) is provided with a movable carrying handle (12), be provided with a button (3) that has first card base (3.1) and second card base (3.2) that moves in vertical direction in the described button groove (1.5) that folds on the seat (13), be provided with a spring (4) of placing in vertical direction in the groove (3.3) of described button (3), one end of described spring withstands on the groove top of button (3), and the other end supports to folding on the block that seat (13) bonnet (1) is interior with the groove (3.3) of button (3) cooperates; Described a pair of first trace (5) with fold seat (13) pivotally attached one end and be provided with two projection (5.5) and (5.6) of joining with first card base (3.1) and second card bases (3.2) cunning of button (3).

3, the retracting mechanism of children trolley according to claim 1 is characterized in that: the both sides of described back-up block (6) be respectively equipped with one strut bar (8) is inserted and can with back-up block (6) pivotally attached slot (6.3).

4, the retracting mechanism of children trolley according to claim 1 is characterized in that: described a pair of second trace (9) and pair of support rods (8) and vehicle frame (14) pivotally attached one end respectively are provided with the contiguous block (10) of a monolateral band slot.