CN209521748U - A kind of perambulator and its wheel steering locking mechanism - Google Patents

Abstract

The utility model discloses a kind of perambulator and its wheel steering locking mechanisms, including car body, the mounting portion being fixed on vehicle frame, it slides vertically the spacer pin being connected on mounting portion and is arranged on front fork and for the jack of spacer pin grafting, the cylinder extended towards jack direction is removably connected on the mounting portion, through-hole in the cylinder to be adapted to spacer pin, pass through the additional cylinder on mounting portion, spacer pin its most length thereof during grafting is located in cylinder and is adapted to it, to effectively increase the external contact area of spacer pin, the structural strength of spacer pin after installation is effectively improved by the setting of cylinder, therefore spacer pin is more durable in use, stress concentration is avoided to lead to the case where being easily broken.

Description

A kind of perambulator and its wheel steering locking mechanism

Technical field

The utility model relates to a kind of perambulator and its wheel steering locking mechanisms.

Background technique

Perambulator be it is a kind of provide tool car that is convenient and designing for baby's outdoor activities, with the progress of science and technology with And the improvement of people's living standards, the quality requirement of people's amusement and leisure are also improving, for many young, just foundation treasured Precious family, they have no longer met daily life leisure and have taken a walk only in the living environment within 1 kilometer, in order to meet user The demand of group, it is existing can be with perambulator that adult rides and its vehicle frame can be with folding storage, by vehicle when not riding usually Frame, which fold, can serve as stroller use, in the case where road surface is straight, it will usually pass through the locking mechanism on front-wheel The steering of front-wheel is limited, car body is capable of the traveling forward of straight line, existing position-limit mechanism when so as to keep being pushed forward It is main including spacer pin and to be fixed on the jack being provided on the raised line and raised line on front fork for spacer pin grafting limit, wherein Spacer pin, which slides vertically, to be connected on vehicle frame, but since jack of the mounting portion on raised line still has a distance, into And cause spacer pin in long strip, when spacer pin and jack be in grafting and limit state, the main stress point of spacer pin its with The junction of mounting portion, the case where being easy to appear fracture there are spacer pin.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of wheel steering of perambulator locks Determine mechanism, has the advantages that spacer pin is not easy to break.

To achieve the above object, the utility model provides following technical solution:

A kind of wheel steering locking mechanism, including be fixed on vehicle frame mounting portion, slide vertically and be connected on mounting portion Spacer pin and be arranged on front fork and for the jack of spacer pin grafting, be removably connected on the mounting portion towards jack side It is the through-hole being adapted to spacer pin in the cylinder to the cylinder of extension.

By the additional cylinder on mounting portion, spacer pin its most length thereof during grafting is located at It is adapted in cylinder and with it, to effectively increase the external contact area of spacer pin, effectively improves installation by the setting of cylinder The structural strength of spacer pin afterwards, therefore spacer pin is more durable in use, avoiding stress from concentrating causes easily to occur being broken It happens, and cylinder is detachably connected with mounting portion, it can be replaced according to actual needs.

The utility model is further arranged: the outer wall of the cylinder is provided with thread segment, is threadedly coupled on the thread segment There is the first nut, first nut is located at the two sides up and down of mounting portion.

Cylinder is detachably connected after passing through mounting portion by the first nut tightening realization of two sides, and structure is simple, and assembles and disassembles When need to only rotate the first nut, it is simple to operate, and may be implemented cylinder bottom end to jack distance adjust.

The utility model is further arranged: restraining position ring block is arranged in the top of the spacer pin, and the spacer pin and jack are inserted When connecing, the stop collar is by cylinder top barrier.

The stroke limit for spacer pin sliding being played by the setting of stop collar, being inserted being displaced downwardly to spacer pin with jack After connecing cooperation realization limiting steering, stop collar can not be moved down again by cylinder top barrier, on the one hand avoid spacer pin entire It is fallen across jack, on the other hand spacer pin can be made to move down in operation can disposably in place.

The utility model is further arranged: the stop collar is magnet ring, and the screw top of the cylinder is connected with and limits Magnetic the second attracting nut of position ring.

Since stop collar has certain magnetism and can be attracting with the second nut, to enable to limit by magnetic force It sells stable to be located in jack in limiting steering state, will not cause spacer pin or more play even from slotting because of road bump The case where deviating from hole.

The utility model is further arranged: it further include the limiting section for being arranged on vehicle frame and being located above stop collar, it is described Stop collar moves up the portion of being limited when stopping and is attracting, and the bottom end of the spacer pin is deviate from from jack.

The extreme position for moving up spacer pin further can be played by the setting of limiting section to limit, and be not required to When being limited to car body steering, only spacer pin need to above be mentioned to the stop collar portion of being limited and be stopped, it is ensured that above mentioned so that limiting Sell from jack abjection operation it is disposable in place, and the fixation by the attracting realization of stop collar and limiting section for spacer pin, It avoids spacer pin from falling under self gravitation effect to cooperate with jack.

The utility model is further arranged: the mounting hole passed through for cylinder, the mounting hole are offered on the mounting portion In kidney-shaped.

Mounting hole is arranged to kidney-shaped, it is ensured that while cylinder can pass through mounting hole, in the position for encountering cylinder installation There are certain deviation cause spacer pin can not with jack to it is corresponding when can be adjusted by unscrewing the first nut, have certain The regulating power of position.

The utility model is further arranged: the top that extension and extension are upwardly extended at the top of the spacer pin is solid Surely there is press section, the face area of the press section is greater than extension.

By the setting of extension and press section, it is capable of providing impetus, drives limit by press section convenient for people Pin is moved down or will be mentioned thereon, and operation is more easily laborsaving.

The another object of the utility model is to provide a kind of perambulator have the advantages that position-limit mechanism is more durable.

To realize the purpose, the utility model provides following technical solution:

A kind of perambulator, including car body, including above-mentioned wheel steering locking mechanism.

By the way that the wheel steering locking mechanism is arranged on the car body, occasion can needed to lock front-wheel steer, The straight line for enabling car body stable is advanced, and wherein reduces the problems in spacer pin stress collection by the setting of cylinder, so that Spacer pin is more durable and the case where being less prone to fracture.

In conclusion the utility model has the following beneficial effects:

By adding dismountable cylinder on mounting portion, effectively increase the contact area outside spacer pin, to avoid The problems in spacer pin stress collection, so that spacer pin is more durable and the case where be less prone to fracture, and by stop collar reality Referring now to the stroke limit that spacer pin moves down, while the stroke limit moved up for spacer pin is realized by limiting section, and due to Stop collar has magnetism, by the holding current state that magnetic force enables spacer pin stable, avoid up and down play the case where.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the present embodiment；

Fig. 2 is the enlarged drawing in Fig. 1 at A；

Fig. 3 is the structure chart of wheel steering locking mechanism in the present embodiment.

Appended drawing reference: 1, car body；2, vehicle frame；3, front fork；4, front-wheel；5, rear-wheel；6, sleeping basket；7, raised line；8, mounting portion；9, Jack；10, spacer pin；11, mounting hole；12, cylinder；13, thread segment；14, the first nut；15, the second nut；16, stop collar； 17, limiting section；18, through slot；19, extension；20, press section.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

A kind of perambulator, as shown in Figure 1, including car body 1, which includes vehicle frame 2 and two front forks 3 arranged symmetrically, 3 bottom of front fork is rotatably connected to front-wheel 4, and the rear end of vehicle frame 2 is provided with rear-wheel 5, and wherein front fork 3 is rotatably connected on vehicle It realizes and turns on frame 2, and the sleeping basket 6 lain for child is set in the front end of vehicle frame 2, thus can when needing farther away place It is realized in a manner of by riding, and the wheel steering that restricted front-wheel 4 turns to is set at the corresponding front fork 3 of vehicle frame 2 and is locked Determine mechanism, limiting steering can be realized to front-wheel 4 by wheel steering locking mechanism when travel track is straight line in this way, made The holding straight line that car body 1 can be stable is obtained to advance.

As shown in Figures 2 and 3, it is extended with raised line 7 in the front end of front fork 3, wheel steering locking mechanism includes being fixed on vehicle Mounting portion 8 on frame 2, the jack 9 being provided on raised line 7 and sliding vertically is connected on mounting portion 8 and for inserting with jack 9 The spacer pin 10 of cooperation is connect, is moved down by spacer pin 10 be clamped the limiting steering that can be realized for front-wheel 4 with jack 9 in this way.

Mounting hole 11 is offered on mounting portion 8, is provided at mounting hole 11 and is removably connected with cylinder with mounting portion 8 12, the inside of the cylinder 12 is the through-hole for being adapted to spacer pin 10 and sliding up and down for it, and the bottom end of the cylinder 12, which extends to, to be faced Nearly jack 9, and the outer wall of cylinder 12 is provided on thread segment 13 and thread segment 13 and is threaded with the first nut 14, and this first Nut 14, which is arranged there are two and is located at the two sides up and down of mounting portion 8 and pushes against with it, realizes that cylinder 12 is detachably connected on peace In dress portion 8, realizes for the detachable and interchangeable of cylinder 12, effectively increase the outside of spacer pin 10 by the setting of cylinder 12 in this way Contact area improves the structural strength of spacer pin 10 after installation, therefore spacer pin 10 is more durable in use, avoids stress Concentration leads to the case where being easily broken.

In the fixed restraining position ring block 16 in the top of spacer pin 10, which is magnet ring, while at the top of cylinder 12 It is threaded with for being abutted with stop collar 16 and second nut 15 attracting with it, end grafting will be pushed under spacer pin 10 When in jack 9, stop collar 16 is stopped by the second nut 15 and because of the absorption of magnetic force, so that spacer pin 10 can be steady Fixed is in clamped condition；In addition limiting section 17 is fixed on vehicle frame 2, which is in U-shape, in first between one side wall Between nut 14 and the second nut 15, another side wall is located at 17 top of limiting section, and in the two side walls of limiting section 17 The through slot 18 of the through slot 18 offered, lower section is passed through for 12 end of cylinder and the second nut 15 and stop collar 16 are respectively positioned on limit Between the two side walls in portion 17, and the area of stop collar 16 is greater than through slot 18, and limiting section 17 is stainless steel material and stop collar 16 can be attracting with its magnetism, by spacer pin 10 above mention to stop collar 16 be limited portion 17 stop when and realize magnetic absorption When, the bottom end of spacer pin 10 is deviate from from jack 9, and the front-wheel 4 of car body 1 can be turned to freely at this time, wherein by stop collar 16 with And the stroke limit that spacer pin 10 is moved up and moved down is realized in the setting of limiting section 17, and since stop collar 16 has magnetism, By the holding current state that magnetic force enables spacer pin 10 stable, avoid up and down play the case where.

In addition it is connected with the extension 19 across limiting section 17 in the end thread of stop collar 16, the extension 19 is in the shape of a rod And top is fixed with flat-shaped press section 20, the face area of press section 20 is greater than extension 19, is capable of providing impetus in this way, Spacer pin 10 is driven to move down or will mention thereon by press section 20 convenient for people, operation is more easily laborsaving；And wherein pacify The mounting hole 11 opened up in dress portion 8 is in kidney-shaped, it is ensured that while cylinder 12 can pass through mounting hole 11, is installed encountering cylinder 12 There are can be adjusted by unscrewing the first nut 14 when certain deviation causes spacer pin 10 corresponding with 9 pairs of jack for position Section, has the regulating power of certain position.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of wheel steering locking mechanism, including be fixed on vehicle frame (2) mounting portion (8), slide vertically and be connected to installation Spacer pin (10) and setting in portion (8) is on front fork (3) and for the jack (9) of spacer pin (10) grafting, it is characterized in that: institute The cylinder (12) for being removably connected on mounting portion (8) and extending towards jack (9) direction is stated, is in the cylinder (12) and spacer pin (10) through-hole being adapted to.

2. wheel steering locking mechanism according to claim 1, it is characterized in that: the outer wall of the cylinder (12) is provided with spiral shell Line section (13) is threaded with the first nut (14) on the thread segment (13), and first nut (14) is located at installation The two sides up and down in portion (8).

3. wheel steering locking mechanism according to claim 2, it is characterized in that: being provided at the top of the spacer pin (10) When stop collar (16), the spacer pin (10) and jack (9) grafting, the stop collar (16) is by cylinder (12) top barrier.

4. wheel steering locking mechanism according to claim 3, it is characterized in that: the stop collar (16) is magnet ring, institute The screw top for stating cylinder (12) is connected with and stop collar (16) magnetic attracting the second nut (15).

5. wheel steering locking mechanism according to claim 4, it is characterized in that: further including being arranged on vehicle frame (2) and position Limiting section (17) above stop collar (16), the stop collar (16) move up the portion of being limited (17) stop and it is attracting when, it is described Deviate from from jack (9) bottom end of spacer pin (10).

6. wheel steering locking mechanism according to claim 1, it is characterized in that: offering on the mounting portion (8) for cylinder The mounting hole (11) that body (12) passes through, the mounting hole (11) are in kidney-shaped.

7. wheel steering locking mechanism according to claim 5, it is characterized in that: the top of the spacer pin (10) is prolonged upwards Stretching has the top of extension (19) and extension (19) to be fixed with press section (20), and the face area of the press section (20) is greater than Extension (19).

8. a kind of perambulator, including car body (1), it is characterized in that: including that wheel steering as claimed in claim 1 to 7 locks machine Structure.