CN2279301Y - bicycle trailer - Google Patents

Abstract

The utility model relates to a bicycle trailer mainly is equipped with the partition respectively in two sides of underframe and is used for two wheels of holding, run through underframe frame from bottom to top with two strut in addition and form a plurality of basal portions, link up two side supports with the longitudinal joint on these a plurality of basal portions, prop with ejector pin in the middle of a plurality of between two side supports and support, the pull rod then links up in the partition one end of underframe frame with a horizontal joint, utilize the collateral branch frame, the pull rod is in the longitudinal joint, the characteristic that the horizontal joint can be buckled and receive and close, can make the collateral branch frame, the pull rod is folded respectively on the underframe frame, the downside when necessary.

Description

Passenger-carrying cycle for bicycle

The utility model provides a kind of relevant for can be for the trailer of bicycle, is meant especially a kind ofly by a plurality of joints side stand and pull bar to be engaged on bottom framework, is able to side stand and pull bar are inwardly folded, and reaches the bicycle trailer of being convenient to fold preservation.

Bicycle trailer in the prior art, it is by electric welding or rivet, the sealed mode of bolt, angle bar that each length is different or steel pipe are bonded into the trailer of a solid shape, tow as the convenient traffic, the carrier that use in the daily life for bicycle, yet following shortcoming arranged in use:

(1) owing to the trailer that mode engaged of electric welding, riveted, its fixed in shape can't be dismantled, and therefore after finishing using, its storage problem is comparatively difficult for general nuclear family.

(2) because general electric welding equipment is adapted at the welding of iron and steel, therefore most common Passenger-carrying cycle for bicycle is a material with the iron and steel all, and weight is heavier, and is dumb.

(3) trailer that forms with the bolt combination support, though have the detouchable function, dismounting on the whole is inconvenience, time-consuming very, and after decomposing, body parts is disperseed, inconvenience is deposited.

In view of common bicycle has above-mentioned shortcoming with trailer, the contriver improves at those shortcoming researchs, designs the utility model Passenger-carrying cycle for bicycle.

The utility model aims to provide a kind of Passenger-carrying cycle for bicycle, its underframe runs through bottom framework from bottom to top with two supports and forms a plurality of base portions, on these a plurality of base portions, be connected two and be the side stand that N shape bends with longitudinal joint, support with roof bar stay in the middle of a plurality of between two side stands, pull bar then is connected separating part one end in bottom framework with a horizontal joint, utilize side stand, pull bar is in longitudinal joint, the characteristic that the bent group of horizontal joint folds, can make side stand, pull bar is received respectively and is folded on bottom framework, downside, reach simple and easy the folding of energy when not using, can reduce volume rapidly so that harvesting, in addition, complete array mode without the electric welding welding, therefore can adopt lighter and cheap material, not only reduce manufacturing cost but also flexibly light and handy, this is a goal of the invention of the present utility model.

Below in conjunction with accompanying drawing of the present utility model detailed construction of the present utility model, application principle, effect are described further:

Fig. 1 is a structure decomposition map of the present utility model;

Fig. 2 is the structure decomposition map at longitudinal joint of the present utility model position;

Fig. 3 is the utility model side stand folding scheme drawing;

Fig. 4 is the utility model pull bar folding scheme drawing ();

Fig. 5 is the utility model pull bar folding scheme drawing (two);

Enforcement illustration when Fig. 6 is the utility model use;

Fig. 7 is the enforcement illustration of the utility model when folding.

The contrast of element number and title in the diagram: the 1...... bottom framework 11...... separating part 12...... wheel 13...... first support 131...... base portion 132...... hole 14...... second support 141...... base portion 151,152,153,154...... longitudinal joint 155...... horizontal joint 1541...... knock hole 1542...... hole 1551,1552...... push rod 22...... hole 3...... pull bar 31...... hook 32...... latch 321...... hook sheet 4...... storage box 41...... fig leaf in the middle of the pin-and-hole 2...... side stand 21......

Fig. 1 is the utility model structure decomposition map, shown in this figure, can clearly find out, the utility model mainly comprises: bottom framework 1, side stand 2 and pull bar 3 etc. are partly, wherein bottom framework 1 two sides are arranged with separating part 11 and enclose ccontaining two sidecars wheel 12 for frame, two sides then run through bottom framework 1 from bottom to top and form a plurality of base portions 131 and 141 with first support 13 and second support 14 respectively in addition, at these a plurality of base portions 131, on 141 then by a plurality of longitudinal joints 151,152,153,154 are connected the side stand 2 of two bendings, side stand 2 is provided with a plurality of holes, can pay a plurality of middle push rods 21 for the bolt-through lock supports to arrive in, pull bar 3 then is engaged on separating part 11 1 ends of bottom framework 1 with a horizontal joint 155, pull bar 3 front ends are to be one suitably to bend and be provided with a hook 31.

Fig. 2 is the structure decomposition map at the utility model longitudinal joint position, this figure is to be example with longitudinal joint 154, other each longitudinal joint 151,152,153 is also similar, by diagram as can be known: first support 13 runs through the base portion 131 that bottom framework 1 forms and is provided with a plurality of holes 132, can be for a plurality of knock holees 1541 of bolt locking below longitudinal joint 154, the end of side stand 2 then is provided with a hole 22, can be locked in a hole 1542 of longitudinal joint 154 tops for bolt, longitudinal joint 154 is fixed on the base portion 131 and side stand 2 keeps the state that can rotate on longitudinal joint 154.

Fig. 3 is a side stand folding scheme drawing of the present utility model, by illustrating as can be known: because the state that side stand 2 maintenances can be rotated on longitudinal joint 154, so work as and finish using, behind the dismountable middle push rod 21, inwardly turnover is above bottom framework 1 with side stand 2, and one-tenth folds the state that folds.

Fig. 4, Fig. 5 is a pull bar folding scheme drawing of the present utility model, can be found out by this two diagram: horizontal joint 155 is separating part 11 1 ends that are connected in bottom framework 1, and pull bar 3 is to pay in horizontal joint 155 central authorities with bolt lock, horizontal joint 155 2 ends then are arranged with two pin-and- holes 1551,1552, when using at ordinary times, pull bar 3 protracts and runs through a pin-and-hole 1551 insertion pull bars 3 with a latch 32, make pull bar 3 be remained in the position of protracting, and when folding, then extract latch 32 earlier out, with pull bar 3 back tracks, run through pin-and-hole 1552 with latch 32 again and insert pull bar 3, make pull bar 3 be remained in the position that folds, the latch 32 distolateral hook sheets 321 that are provided with are arranged again, can be when latch 32 inserts pin-and-holes location usefulness, therefore no matter latch 32 is in pin-and-hole 1551 that protracts or the pin-and-hole 1552 that folding, all can keep firm plugging together and does not come off.

Fig. 6, Fig. 7 are that the utility model uses and the enforcement illustration that folds, can be found out by this two diagram: the utility model in use, can cooperate attendant equipments such as storage box 4 and fig leaf 41, form a comfortable space, to carry as baby or pet, when folding, remove wheel 12 earlier, middle push rod 21 by 2 dismountings of two side stands, can be received side stand 2 bendings and folded in the upside of bottom framework 1, again pull bar 3 inwardly is folded in bottom framework 1 below, can makes it become the folding fully state that folds.

From the above mentioned as can be known, the utility model Passenger-carrying cycle for bicycle has really is convenient to folding folding, and has changed the deficiency that exists in the prior art, has reached contriver's goal of the invention.

Claims (5)

1. A bicycle trailer, which is made up of bottom frame, wheels, side supports and pull rods, etc., is characterized in that: the bottom frame (1) two sides are respectively provided with braces (13), (14) from bottom to top through the bottom frame ( 1) A plurality of bases (131), (141) are formed and the two side supports (2) are movably connected with the longitudinal joints (154). The side supports (2) are supported by a plurality of intermediate push rods (21), and the tie rods (3 ) is movably connected to the side frame end of the bottom frame (1) with a horizontal joint (155), and a partition (11) is provided outside it. 2. The bicycle trailer as claimed in claim 1, characterized in that: the bottom end of the longitudinal joint (154) is locked on the aforementioned base (131), (141) by a plurality of bolts, and the top end of the longitudinal joint (154) is locked by A bolt connects the two ends of the side support (2), so that the two side supports can be bent inwardly. 3. The bicycle trailer as claimed in claim 1, characterized in that: the tie rod (3) is locked in the middle of the cross joint (155) with a bolt, and a pin hole (1551) is respectively set at two ends of the cross joint (155), (1552), latch (32) runs through pull rod (3) along pin hole (1551), (1552) and pull rod (3) can be kept stretching or retracting. 4. The bicycle trailer according to claim 1, characterized in that: the middle push rod (21) of the side bracket (2) is locked by a bolt penetrating through the side bracket (2). 5. The bicycle trailer according to claim 3, characterized in that: one end of the bolt (32) is provided with a hook piece (321) extending inward.

Images