CN206107457U - Tight mechanism of head lock and folding car of folding car - Google Patents

Abstract

The utility model discloses a tight mechanism of head lock and folding car of folding car, locomotive include the last locomotive connected through the articulated shaft and locomotive down, go up the locomotive and can launch or be folding in order realizing around the articulated shaft rotation between the locomotive down, and the tight mechanism of head lock includes a locking Assembly and the 2nd locking Assembly, and a locking Assembly lies in locomotive and butt joint department of locomotive down, go up the locomotive and pass through locking Assembly automation pre -fixing after the locomotive launches down tightly, the 2nd locking Assembly and a locking Assembly are connected for last locomotive and lower locomotive after fastening pre -fixing is tight. The utility model discloses in, pre -fixing further locked after tight again when head lock was tight, and is tight through removing pre -fixing after the preliminary unblock again during the unblock, avoids locking or the middle and upper locomotive of releasing process to rotate and meet accident foldingly with the head of getting off along the articulated shaft at the impersonal force effort, and the circumstances that to prevent accidental hurted sb. 's feelings appears, has improved the safety in utilization of using the folding car of this tight mechanism of head lock, and the tight mechanism structure of this head lock is simple in addition, convenient operation.

Description

The headstock retaining mechanism of folded bicycle and folded bicycle

Technical field

This utility model belongs to technical field of transportation means, and in particular to a kind of headstock retaining mechanism of folded bicycle and have The folded bicycle of the retaining mechanism.

Background technology

With social progress, the development in city, the youngster in city is lived in, in the urgent need to a short distance walking-replacing tool, Walking can be replaced from subway station or bus station to destinatioies such as companies.Electric bicycle has been developed considerable time, For elder person, handicapped people and need short distance go on a journey people be strictly a good walking-replacing tool.In order to improve The portable performance of folded bicycle can be carried into the public transports such as subway, public transport in order to it, in prior art generally Folded bicycle is designed to into many part-structures, fixation is spread out when using, folded when not in use.

The headstock of traditional folded bicycle includes the upper headstock that can be mutually twisted and lower headstock, wherein, upper headstock is provided with wedge Shape block, lower headstock is provided with the groove being engaged with the wedge, when folded bicycle launches, with it is hand steered live in headstock or lower headstock, Need to be engaged with groove using spanner drive wedge simultaneously and realize locking；When folded bicycle needs to fold, need also exist for using and pull Handss provide sufficiently large dynamics and are unlocked.

Utility model content

A purpose of the present utility model is the headstock retaining mechanism for providing a kind of folded bicycle, its applicable safety, and knot Structure is simple, easy to operate.

Another purpose of the present utility model is to provide a kind of folded bicycle, with good safety in utilization and user's body Test.

It is that, up to this purpose, this utility model is employed the following technical solutions：

On the one hand, there is provided a kind of headstock retaining mechanism of folded bicycle, headstock include by jointed shaft connect upper headstock and Lower headstock, can rotate to realize launching or fold, the headstock between the upper headstock and the lower headstock around the jointed shaft Retaining mechanism includes：

First latch assembly, first latch assembly is located at the joint of the upper headstock and the lower headstock, described Upper headstock and the lower headstock are locked in advance automatically after launching by first latch assembly；

Second latch assembly, second latch assembly is connected with first latch assembly, for fastening pre- locking after Described upper headstock and the lower headstock.

On the other hand, there is provided a kind of folded bicycle, with headstock retaining mechanism as above.

The beneficial effects of the utility model：In the headstock retaining mechanism of folded bicycle of the present utility model, headstock is in locking Further locked by the second latch assembly again after the first latch assembly in advance locking, solved again after preliminary unblock during unblock Except pre- locking, it is to avoid in locking or releasing process upper headstock impersonal force active force along jointed shaft rotate and with hair business of getting off Outer folding, so as to cause unexpected situation about hurting sb.'s feelings to occur, improves and uses safety using the folded bicycle of the headstock retaining mechanism Property, and the headstock locking mechanism structure is simple, and unblock and locking operation are convenient.

Description of the drawings

Fig. 1 is the structural representation of the headstock released state of this utility model embodiment.

Fig. 2 is the A direction views of Fig. 1.

Fig. 3 is the front view of the headstock locking state of this utility model embodiment.

Fig. 4 is the B-B direction sectional view of Fig. 3.

Fig. 5 is the C direction views of Fig. 3.

In Fig. 1～5：

10th, upper headstock；11st, the first butt end；20th, lower headstock；21st, the second butt end；30th, jointed shaft；

100th, latch hook；200th, lock shaft；300th, holding tank；310th, spigot surface；400th, elastomeric element；410th, lead column；420、 Compression spring；510th, first connecting portion；520th, second connecting portion；600th, handle；700th, screw rod.

Specific embodiment

The technical solution of the utility model is further illustrated below by specific embodiment.

In description of the present utility model, unless otherwise clearly defined and limited, term " connection " should be interpreted broadly, For example, it may be fixedly connected, or be detachably connected, or it is integral；Can be mechanically connected；It can be direct phase Even, it is also possible to be indirectly connected to by intermediary, can be that the connection of two components interiors or the interaction of two parts are closed System.For the ordinary skill in the art, can understand that above-mentioned term is concrete in this utility model with concrete condition Implication.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.

As shown in Fig. 1 to 5, embodiment of the present utility model provides a kind of headstock retaining mechanism of folded bicycle, and headstock includes The upper headstock 10 connected by jointed shaft 30 and lower headstock 20, can be around the hinge between the upper headstock 10 and the lower headstock 20 Spindle 30 is rotated to realize launching or fold, and the headstock retaining mechanism includes：First latch assembly, first latch assembly Positioned at the upper headstock 10 and the joint of the lower headstock 20, after the upper headstock 10 and the lower headstock 20 expansion institute is passed through State the first latch assembly to lock in advance automatically；Second latch assembly, second latch assembly is connected with first latch assembly, The upper headstock 10 and the lower headstock 20 after for fastening pre- locking.During headstock launches, positioned at upper headstock 10 with First latch assembly of the joint of headstock 20 carries out pre- locking to upper headstock 10, lower headstock 20, then again using the second locking Component is further fastened to upper headstock 10 and lower headstock 20, to lock headstock.During unblock, at the beginning of first passing through the second latch assembly Step unblock, because the pre- locking of the first latch assembly is acted on, after the tentatively unblock of the second latch assembly, upper headstock 10 and lower headstock 20 Between still keep deployed condition, then upper headstock 10 folded with lower headstock 20 manually.The headstock of the present embodiment is in lock Further locked by the second latch assembly again after the first latch assembly in advance locking when tight, during unblock after preliminary unblock Release pre- locking again, it is to avoid in locking or releasing process upper headstock 10 impersonal force active force lower edge jointed shaft 30 rotate and with There is unexpected folding in headstock 20, so as to cause unexpected situation about hurting sb.'s feelings to occur, improve the folding using the headstock retaining mechanism The safety in utilization of car, and the headstock locking mechanism structure is simple, and unblock and locking operation are convenient.

In this utility model, when headstock launches, the angle between upper headstock 10 and lower headstock 20 is 180 °, and headstock needs folding When folded, after unblock with it is hand steered live in headstock 10 around jointed shaft 30 rotate 180 ° i.e. be capable of achieving fold.

Used as the specific embodiment of this headstock retaining mechanism, the upper headstock 10 has the near the lower headstock 20 One butt end 11, the lower headstock 20 has the second butt end 21 for being engaged with first butt end 11, described first pair The side for connecing end 11 is hinged by the jointed shaft 30 with second butt end 21；First latch assembly includes latch hook 100 and the lock shaft 200 that is engaged with the latch hook 100, the latch hook 100 is convexly equipped on the end face of first butt end 11, The holding tank 300 being open towards first butt end 11, the lock shaft 200 are provided with the end face of second butt end 21 Be movably set in the holding tank 300 away from the jointed shaft 30 and by elastomeric element 400, the lock shaft 200 parallel to The jointed shaft 30；When the upper headstock 10 and the lower headstock 20 launch, the opening of the latch hook 100 is towards the elastic Part 400, the latch hook 100 catches on the lock shaft 200 and drives the lock shaft 200 along the direction level near the jointed shaft 30 Motion, to realize locking the headstock in advance in the presence of the elastomeric element.Elastomeric element 400 has all the time prevention latch hook 100 depart from the pretension active force in lock shaft 200, so as to prevent upper headstock 10 from rolling over lower headstock 20 under impersonal force effect It is folded.During headstock launches, when latch hook 100 catches on lock shaft 200 and moves horizontally towards the direction near jointed shaft 30, with elasticity The active force of part 400 combines, and realizes that pre- locking is got on the bus 10 and a lower headstock 20, it is to avoid upper headstock 10 is in the case of non-artificial Rotate along jointed shaft 30, can now pass through the second latch assembly safe locking headstock.During headstock folding, through the second locking group After the preliminary unblock of part, headstock 10 is caught manually and is rotated along jointed shaft 30 and realize folding, in the folding process, latch hook 100 Gradually depart from lock shaft 200, lock shaft 200 is moved horizontally to original position along the direction away from jointed shaft, and by elastomeric element 400 its position of holding are relatively fixed, final to realize unlocking headstock completely to realize releasing pre- locking.In the present embodiment, such as Fig. 1 With shown in Fig. 2, elastomeric element 400 is arranged on lock shaft 200 near the side of jointed shaft 30.

Used as the more particular embodiment of headstock retaining mechanism, the elastomeric element 400 is described including being arranged at intervals at The lead column 410 at the two ends of lock shaft 200 and the compression spring 420 being sheathed in the lead column 410, the lock shaft 200 is vertical Can slide in the lead column 410 and along the lead column 410, the holding tank 300 has the near the jointed shaft 30 Side wall and the second sidewall relative with the first side wall, the two ends of the lead column 410 respectively with the first side wall, institute Second sidewall connection is stated, the one end of the compression spring 420 abuts with the lock shaft 200, and the other end is abutted with the first side wall. As depicted in figs. 1 and 2, when latch hook 100 catches on lock shaft 200 and drives lock shaft 200 to move horizontally, in the work of compression spring 420 With under, there is pre- locking to act on to headstock for lock shaft 200 and latch hook 100.The effect of lead column 410 can prevent lock shaft 200 from moving When shift and affect the cooperation of latch hook 100 and lock shaft 200.

In the present embodiment, the two ends of compression spring 420 are not limited to be abutted with the first side wall of lock shaft, holding tank 300, also may be used Be connection.

As this utility model preferred embodiment, the two ends of the lock shaft 200 respectively by first connecting portion 510 with The lead column 410 connects, and the first connecting portion 510 is coaxial with the lock shaft 200 and can slide along the lead column 410, The length of the first connecting portion 510 is more than the diameter of the compression spring 420, to increase compression spring 420 and lock shaft indirectly 200 contact area, increases active force of the compression spring 420 to lock shaft 200, makes the pre- locking of headstock more stable.

Used as the preferred embodiment of headstock retaining mechanism, first latch assembly includes two latch hooks 100, two The individual latch hook 100 is spaced projection on the end face of first butt end 11.Using spaced two latch hooks 100 and lock Axle 200 coordinates so that the pre- locking of headstock realization, makes the uniform force of lock shaft 200, to improve the pre- locking stability of headstock.

In specific embodiment of the present utility model, second latch assembly includes handle 600 and screw rod 700, institute State the outside that handle 600 is arranged at second butt end 21 near the lock shaft 200, the one end of the screw rod 700 and lock shaft 200 Vertical connection, the second sidewall that the other end is extended to through the holding tank 300 spins with the screw thread of the handle 600, the car After head is folded, the distance between the handle 600 and second sidewall are more than the moveable ultimate range of the lock shaft 200, described Second latch assembly can be moved along the direction closer or far from the compression spring 420.In the present embodiment, headstock folding Afterwards, handle 600 keeps maximum distance, headstock under the active force of compression spring 420 and the second sidewall of holding tank 300 between Expansion is carried out during pre- locking, and handle 600 is moved with lock shaft 200 along the direction near compression spring 420, in compression spring Pre- locking is carried out in the presence of 420, when latch hook 100 drives lock shaft 200 (to move to ultimate range) after moving into place, along clockwise Direction rotating handles 600, drives lock shaft 200 to move along the direction away from compression spring 420 by screw rod 700, rotates certain angle After degree (till 600 turns of handle is motionless), that is, realize that headstock is locked；Unblock headstock retaining mechanism is needed to carry out headstock folding When, rotating handles 600 in the counterclockwise direction first drive lock shaft 200 along near the direction of compression spring 420 by screw rod 700 Motion, after rotation equal angular, that is, realizes preliminary unblock, then holding headstock 10 makes it rotate to release along jointed shaft 30 Lock in advance and folded.

In description of the present utility model, the handle 600 is clockwise, the angle of rotate counterclockwise is unrestricted, specifically Depending on the helicitic texture of screw rod 700.In the present embodiment, the initial position of handle 600 is level, and it is clockwise, counterclockwise The angle of rotation is 180 °.

In the present embodiment, the screw rod 700 is located at the side along its length of the lock shaft 200 with the junction of the lock shaft 200 To center, conciliate car locking head to realize smoothly locking headstock.

In the present embodiment, the lock shaft 200 is fixedly connected by second connecting portion 520 with the screw rod 700, two institutes When stating latch hook 100 and catching on the lock shaft 200, the second connecting portion 520 is located at the middle of two latch hooks 100, to carry Stability when high headstock locking and unblock.

Used as this utility model preferred embodiment, the second sidewall has court near the side of the lock shaft 200 To the inclined spigot surface 310 of the lock shaft 200, the upside of the spigot surface 310 extends to the end face of second butt end 21. Spigot surface 310 can be plane, or cambered surface, can enter or exit holding tank 300 and provide to be oriented to for latch hook 100 and make With, moreover it is possible to shorten width of the holding tank 300 along the direction of lead column 410, handle 600 and appearance after shortening headstock expansion, folding Receive the distance between second sidewall of groove 300, and then shorten the length of screw rod 700, save manufacturing cost.

In the present embodiment, retaining mechanism is not limited to be applied to the locking of headstock and unblock, and any for folded bicycle is rolled over Folded position is suitable for.

In this utility model, headstock retaining mechanism makes the locking of headstock and unblock safer, and its simple structure, headstock Retaining mechanism will not take vehicle body space.

Embodiment of the present utility model also provides a kind of folded bicycle, and it has the headstock locking machine as described in above-mentioned embodiment Structure.The headstock of folded bicycle adopts the headstock retaining mechanism, can improve the safety in utilization of folded bicycle, has folded bicycle more preferable Consumer's Experience.

In the description of this specification, the description meaning of reference term " preferred embodiment ", " preferred embodiment " etc. Refer to that the specific features, structure, material or the feature that describe with reference to the embodiment or example are contained in of the present utility model at least one In individual embodiment or example.In this manual, identical embodiment is not necessarily referring to the schematic representation of above-mentioned term Or example.And, the specific features of description, structure, material or feature in any one or more embodiments or can be shown Combine in an appropriate manner in example.

Above example is only used for illustrating detailed protocol of the present utility model that this utility model is not limited to above-mentioned enforcement Example, that is, do not mean that this utility model has to rely on above-described embodiment and could implement.Person of ordinary skill in the field should Understand, to it is of the present utility model it is any do not pay performing creative labour by the improvement associated, all fall within of the present utility model Within the scope of protection domain and disclosure.

Claims (10)

1. a kind of headstock retaining mechanism of folded bicycle, headstock includes the upper headstock connected by jointed shaft and lower headstock, it is described on Can rotate to realize launching or fold around the jointed shaft between headstock and the lower headstock, it is characterised in that the head lock Tight mechanism includes：

First latch assembly, first latch assembly is located at the joint of the upper headstock and the lower headstock, described to get on the bus Head and the lower headstock are locked in advance automatically after launching by first latch assembly；

Second latch assembly, second latch assembly is connected with first latch assembly, for fastening pre- locking after institute State headstock and the lower headstock.

2. the headstock retaining mechanism of folded bicycle according to claim 1, it is characterised in that the upper headstock has near institute State the first butt end of lower headstock, the lower headstock has the second butt end being engaged with first butt end, described the The side of one butt end is hinged by the jointed shaft with second butt end；

First latch assembly includes latch hook and the lock shaft being engaged with the latch hook, and the latch hook is convexly equipped in described first pair Connect on the end face at end, the holding tank being open towards first butt end is provided with the end face of second butt end, it is described Lock shaft is movably set in the holding tank away from the jointed shaft and by elastomeric element, and the lock shaft is hinged parallel to described Axle；

When the upper headstock and the lower headstock launch, towards the elastomeric element, the latch hook catches on the opening of the latch hook The lock shaft simultaneously drives the lock shaft along the direction horizontal movement near the jointed shaft, to realize the work in the elastomeric element With the lower pre- locking headstock.

3. the headstock retaining mechanism of folded bicycle according to claim 2, it is characterised in that the elastomeric element includes interval The lead column for being arranged at the lock shaft two ends and the compression spring being sheathed in the lead column, the lock shaft is perpendicular to described Lead column and can slide along the lead column, the holding tank has near the first side wall of the jointed shaft and with described first The relative second sidewall of side wall, the two ends of the lead column are connected respectively with the first side wall, the second sidewall, the pressure Contracting spring one end is abutted with the lock shaft, and the other end is abutted with the first side wall.

4. the headstock retaining mechanism of folded bicycle according to claim 3, it is characterised in that the two ends of the lock shaft lead to respectively Cross first connecting portion to be connected with the lead column, the first connecting portion is coaxial with the lock shaft and can slide along the lead column Dynamic, the length of the first connecting portion is more than the diameter of the compression spring.

5. the headstock retaining mechanism of folded bicycle according to claim 4, it is characterised in that first latch assembly includes Two latch hooks, two latch hook interval projections are on the end face of first butt end.

6. the headstock retaining mechanism of folded bicycle according to claim 5, it is characterised in that second latch assembly includes Handle and screw rod, the handle is arranged at the outside of second butt end, described screw rod one end and lock shaft near the lock shaft Vertical connection, the other end is extended to through the second sidewall and spun with the handle screw thread；

After the headstock folding, the distance between the handle and described second sidewall it is moveable more than the lock shaft it is maximum away from From second latch assembly can be moved along the direction closer or far from the compression spring.

7. the headstock retaining mechanism of folded bicycle according to claim 6, it is characterised in that the screw rod and the lock shaft Junction is located at lock shaft center along its length.

8. the headstock retaining mechanism of folded bicycle according to claim 7, it is characterised in that the lock shaft is by the second connection Portion is fixedly connected with the screw rod, and when two latch hooks catch on the lock shaft, the second connecting portion is located at two locks The middle of hook.

9. the headstock retaining mechanism of folded bicycle according to claim 6, it is characterised in that the second sidewall is near described The side of lock shaft has towards the inclined spigot surface of the lock shaft, and second butt end is extended on the upside of the spigot surface End face.

10. a kind of folded bicycle, it is characterised in that with headstock retaining mechanism as claimed in any one of claims 1-9 wherein.