CN101885353B

CN101885353B - All-terrain vehicle seat cushion lock

Info

Publication number: CN101885353B
Application number: CN2009101918236A
Authority: CN
Inventors: 王魏; 吴志畅; 张镜
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2009-12-08
Filing date: 2009-12-08
Publication date: 2011-12-14
Anticipated expiration: 2029-12-08
Also published as: CN101885353A

Abstract

The invention discloses an all-terrain vehicle seat cushion lock, which comprises a pin shaft (1). A locking hook (2) is fixed on the pin shaft (1); a torsional spring (3) beside the locking hook (2) is sleeved on the pin shaft (1); and a pin of the torsional spring (3) is clamped in a groove (2c) of the locking hook (2). The all-terrain vehicle seat cushion lock is characterized in that: a limit piece (4) which protrudes on an outer cylindrical surface of the pin shaft (1) is also arranged on the pin shaft (1); the limit piece (4) and the locking hook (2) are positioned on two sides of the torsional spring (3); and the distance of adjacent end faces of the limit piece (4) and the torsional spring (3) is greater than that of adjacent end faces of the locking hook (2) and the torsional spring (3). In the using process, the lock cannot disengage from a seat cushion lock saddle due to movement, guarantees the reliable connection between the seat cushion and the frame, and also prevents the seat cushion lock saddle from being abraded by the pin shaft.

Description

A kind of all-terrain vehicle seat cushion lock

Technical field

The present invention relates to beach buggy, more particularly, relate to a kind of all-terrain vehicle seat cushion lock of slip-off preventing.Background technology

The seat cushion of beach buggy is directly to be placed on the vehicle frame, and seat cushion only is hooked on the snap close of vehicle frame by the bench lock of seat cushion afterbody.Bench lock comprises bearing pin, and bearing pin is inserted in the bench lock bearing of seat cushion, and the bench lock bearing is the engineering plastics material, and is one-body molded with the seat cushion substrate.The bench lock bearing is provided with the lugs of two band pin shaft holes, the segment distance of being separated by between two lugs, two lugs in opposite directions the termination portion of side be provided with the breach that connects pin shaft hole, the bearing pin pin shaft hole of from then on packing in the breach; Be fixed with latch hook on the bearing pin, torsion spring set arranged on bearing pin at the latch hook side, latch hook and torsion spring are between two lugs, the contiguous lug of latch hook side, torsion spring is positioned at the middle part of bearing pin, and a leg of this torsion spring is stuck in the groove of latch hook, and another leg is against on the bench lock bearing.The hook portion opening of latch hook down, latch hook catches on the snap close on the vehicle frame downwards all the time under the effect of torsion spring.Snap close is a U-shaped, its two corners, end are because bending must have circular arc, when the latch hook of bench lock is not locked following time over against snap close ground, latch hook is under the directional tagging of snap close end circular arc corner, can drive bearing pin moves to the end away from jam plate, bearing pin can be deviate from the breach between bench lock bearing two lugs after repeatedly moving, and the phenomenon that causes bench lock to come off makes seat cushion to fix on vehicle frame.

Summary of the invention

Technical matters to be solved by this invention is: a kind of all-terrain vehicle seat cushion lock is provided, and it in use can not come off from the bench lock bearing, guarantees that seat cushion and the reliable of vehicle frame are connected.

Technical scheme of the present invention is as follows: a kind of all-terrain vehicle seat cushion lock, comprise bearing pin, on bearing pin, be fixed with latch hook, torsion spring set is arranged on bearing pin at the latch hook side, one leg of this torsion spring is stuck in the groove of described latch hook, it is characterized in that: also be provided with the locating part of the bearing pin external cylindrical surface of emerging on described bearing pin, this locating part and latch hook lay respectively at the both sides of torsion spring, and the distance of described locating part and torsion spring adjacent face is greater than the distance of latch hook and torsion spring adjacent face.

The present invention is provided with locating part on the bearing pin of bench lock, offset by the sponson and the lug side of locating part from the bearing pin external cylindrical surface, stops the play of bearing pin.The distance of locating part and torsion spring adjacent face is greater than the distance of latch hook and torsion spring adjacent face, make locating part and its be close to the spacing of lug, away from the distance of locating part one end end face to the bearing breach end face that is close to, bearing pin just can not withdraw from, come off from this breach less than bearing pin.

Further, described latch hook has a hook plate, and the bottom of hook plate is a hook portion, and the top of hook plate tightly is enclosed within on the described bearing pin by the hole, a side that deviates from bill at the middle part of described hook plate is provided with the spanner perpendicular to hook plate, is provided with described groove on the hook plate of this spanner side.Spanner can be pulled latch hook easily, upwards pulls spanner, with regard to liftable latch hook, it is withdrawed from from snap close.

Further, described bearing pin is inserted in the bench lock bearing of seat cushion, and described bench lock bearing is provided with the lugs of two band pin shaft holes, two lugs in opposite directions the termination portion of side be provided with the breach that connects pin shaft hole; Described hook plate, torsion spring and locating part are between two lugs, and this locating part is close to one of them lug, and another leg of described torsion spring is against on the bench lock bearing.Locating part and lug are adjoining, make bearing pin can only move extremely short distance in pin shaft hole, prevent the play back and forth of bearing pin, the bench lock bearing of the plastic material of avoiding wearing and tearing.

For ease of assembling, described locating part is a locating dowel pin, and this locating dowel pin is perpendicular to the axis of described bearing pin.

As further embodiment, described locating part is an elastic cylindrical pin, and it radially passes described bearing pin, and stretch out from the external cylindrical surface of bearing pin at the two ends of elastic cylindrical pin.Itself has elasticity elastic cylindrical pin, is contained in to maintain tension force in the hole, is difficult for getting loose, and mounting or dismounting are convenient, and do not influence fiting property, and pin-and-hole does not need articulation.

The invention has the beneficial effects as follows: bench lock in use can not guarantee that seat cushion and the reliable of vehicle frame are connected, and have also avoided the bench lock bearing to be worn and torn by bearing pin simultaneously because of play comes off from the bench lock bearing.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the left view of Fig. 1.

The specific embodiment

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

As depicted in figs. 1 and 2, the present invention is a kind of all-terrain vehicle seat cushion lock, mainly is made of bearing pin 1, latch hook 2 torsion springs 3, locating part 4.Wherein, torsion spring 3 is set on the bearing pin 1, and latch hook 2 and locating part 4 lay respectively at the both sides of torsion spring 3, and latch hook 2 is located on the bearing pin 1 fixing with bearing pin 1.Latch hook is a blanked part, it has a hook plate 2a, and the bottom of hook plate 2a is a hook portion, and the top of hook plate 2a tightly is enclosed within on the bearing pin 1 by the hole, a side that deviates from bill at the middle part of hook plate 2a is provided with the spanner 2b perpendicular to hook plate 2a, is provided with groove 2c on the hook plate 2a of this spanner 2b side.Spanner 2b can pull latch hook 2 easily, upwards pulls spanner 2b, with regard to liftable latch hook 2, it is withdrawed from from snap close 6.

From Fig. 1, can see, bearing pin 1 is inserted in the bench lock bearing 5 of seat cushion, on bench lock bearing 5, be provided with the lug 5a of two band pin shaft hole 5b, be separated with a segment distance mutually between two lug 5a, two lug 5a in opposite directions the termination portion of side be provided with the breach 5c that connects pin shaft hole 5b, two breach 5c are used to install bearing pin 1, bearing pin 1 breach 5c plug-in mounting is thus gone into pin shaft hole 5b, hook plate 2a, torsion spring 3 are between two lug 5a, one leg of torsion spring 3 is stuck among the groove 2c of latch hook 2, and another leg is against on the bench lock bearing 5.Latch hook 2 is under the effect of torsion spring 3, and its hook portion such as all morning be snap close 6 on vehicle frame, and snap close 6 is caught on.Also be provided with the emerge locating part 4 of bearing pin 1 external cylindrical surface of two ends on the bearing pin 1 between the two lug 5a, locating part 4 is elastic cylindrical pins, and it radially passes bearing pin 1, and stretch out from the external cylindrical surface of bearing pin 1 at the two ends of elastic cylindrical pin.Itself has elasticity elastic cylindrical pin, is contained in to maintain tension force in the hole, is difficult for getting loose, and mounting or dismounting are convenient, and pin-and-hole does not need articulation.The locating part 4 that elastic cylindrical pin constitutes is positioned at the side of right side lug 5a, and is contiguous with right side lug 5a.

The present invention installs like this: torsion spring 3 is enclosed within latch hook 2 right sides, among the pin-and-hole 5b of right-hand member with bearing pin 1 by the breach 5c insertion right half part of the right side lug 5a of bench lock bearing 5, turn right and promote axle 1, left end until bearing pin 1 can insert from the breach 5c of left side lug 5a the pin-and-hole 5b of left-half, assemble locating part 4 then, the emerge external cylindrical surface of bearing pin 1 of the two ends of locating part 4, the side of its sponson and lug 5a offsets, thereby stop the play of bearing pin 1, avoid bearing pin 1 from breach 5c, to withdraw from, come off.

Claims

1. all-terrain vehicle seat cushion lock, comprise bearing pin (1), on bearing pin (1), be fixed with latch hook (2), there is torsion spring (3) to be enclosed within on the bearing pin (1) at latch hook (2) side, one leg of this torsion spring (3) is stuck in the groove (2c) of described latch hook (2), it is characterized in that: the locating part (4) that on described bearing pin (1), also is provided with the bearing pin of emerging (1) external cylindrical surface, this locating part (4) and latch hook (2) lay respectively at the both sides of torsion spring (3), and the distance of described locating part (4) and torsion spring (3) adjacent face is greater than the distance of latch hook (2) with torsion spring (3) adjacent face.

2. a kind of all-terrain vehicle seat cushion lock according to claim 1, it is characterized in that: described latch hook (2) has a hook plate (2a), the bottom of hook plate (2a) is a hook portion, the top of hook plate (2a) tightly is enclosed within on the described bearing pin (1) by the hole, a side that deviates from bill at the middle part of described hook plate (2a) is provided with the spanner (2b) perpendicular to hook plate (2a), is provided with described groove (2c) on the hook plate (2a) of this spanner (2b) side.

3. a kind of all-terrain vehicle seat cushion lock according to claim 2, it is characterized in that: described bearing pin (1) is inserted in the bench lock bearing (5) of seat cushion, described bench lock bearing (5) is provided with the lugs (5a) of two band pin shaft holes (5b), two lugs (5a) in opposite directions the termination portion of side be provided with the breach (5c) that connects pin shaft hole (5b); Described hook plate (2a), torsion spring (3) and locating part (4) are positioned between two lugs (5a), the contiguous wherein lug (5a) of this locating part (4), and another leg of described torsion spring (3) is against on the bench lock bearing (5).

4. according to claim 1 or 3 described a kind of all-terrain vehicle seat cushion locks, it is characterized in that: described locating part (4) is a locating dowel pin, and this locating dowel pin is perpendicular to the axis of described bearing pin (1).

5. according to claim 1 or 3 described a kind of all-terrain vehicle seat cushion locks, it is characterized in that: described locating part (4) is an elastic cylindrical pin, and it radially passes described bearing pin (1), and stretch out from the external cylindrical surface of bearing pin (1) at the two ends of elastic cylindrical pin.