CN210478922U - Folding bicycle frame - Google Patents

Abstract

The utility model discloses a foldable bicycle frame relates to frame technical field. The folding bicycle frame comprises a first supporting rod, a connecting rod and a second supporting rod, wherein two grooves are formed in two ends of the connecting rod, and one ends of the first supporting rod and the second supporting rod are respectively located in the two grooves. This foldable bicycle frame, when needs are folding, twist and move two thread bush, promote clamping screw, the inserted bar can slide in the movable groove, shift out from the dead lever, alright rotate first bracing piece and second bracing piece through the dead lever, fold the device, can reduce occupation space, be convenient for carry, the hand wheel rotates, make adjusting screw at two screwed pipe internal rotations, highly adjust the saddle, the saddle is fixed through four telescopic links, can effectually prevent the in-process of riding, the saddle takes place to rotate, the device's saddle adopts the thread tightening mode, the problem that the saddle takes place to slide and reduces has been avoided.

Description

Folding bicycle frame

Technical Field

The utility model relates to a frame technical field specifically is a foldable bicycle frame.

Background

Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. After a person rides the vehicle, the person steps on the pedal as power, and the vehicle is a green and environment-friendly vehicle. The popularity of bicycles provides people with the ability to reach destinations more quickly while saving time, and on the other hand, many people can choose a bicycle as a leisure activity under the condition of leisure consciousness rising, however, a common bicycle, in the regions of great dimensions, it is not easy to park the bicycle, unless there are specially planned parking areas, which require folding of the bicycle, however, the existing foldable bicycle frame is generally provided with a bending point on the frame, so that two tires are close to each other to realize folding, the folding space is limited, the folding bicycle frame occupies a larger space, the folding bicycle frame is inconvenient to carry, and the stability is poor after the folding bicycle frame is unfolded, the saddle is generally fixed by quick disassembly, and the saddle is easy to rotate and reduce in height during use, so that the requirement of a user on the frame of the folding bicycle cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a foldable bicycle frame can twist and move the thread bush, promotes clamping screw and slides in the spout for the inserted bar shifts out the dead lever, alright fold with first bracing piece, connecting rod and second bracing piece, reduces occupation space, and the transport of being convenient for expandes the back, and stability is good, and the user can rotate the hand wheel, highly adjusts the saddle, and the saddle can not take place to rotate in the use, and stability is good.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a foldable bicycle frame, includes first bracing piece, connecting rod and second bracing piece, two recesses have been seted up at the both ends of connecting rod, and the one end of first bracing piece and second bracing piece is located two recesses respectively, and runs through being provided with two dead levers in first bracing piece and the second bracing piece to the both ends of two dead levers respectively with the inner wall welding of two recesses, set up two activity grooves in first bracing piece and the second bracing piece, two activity inslots slidable inlays and is equipped with two inserted bars, and the one end extension of two inserted bars runs through two dead levers.

Preferably, two sliding grooves are formed in the front faces of the first supporting rod and the second supporting rod, two fixing screw rods are embedded in the sliding grooves, one ends of the two fixing screw rods are welded with the two inserting rods, and the other ends of the two fixing screw rods are sleeved with the two thread sleeves.

Preferably, two long grooves are formed in the two insert rods, two limiting rods are embedded in the two long grooves, two ends of the two limiting rods are welded to the inner walls of the two movable grooves, two springs are welded to one sides of the two limiting rods, and the other ends of the two springs are welded to the inner walls of the two long grooves.

Preferably, four telescopic rods are welded at the top of the first support rod close to the edge, and a vehicle seat is welded at the other ends of the four telescopic rods.

Preferably, two threaded pipes are welded at the centers of the corresponding sides of the first support rod and the saddle, adjusting screws are embedded at the other ends of the two threaded pipes, and hand wheels are welded on the outer walls of the adjusting screws.

Preferably, slots are formed in the two fixing rods and located on the horizontal middle lines of the two inserting rods.

The utility model provides a folding bicycle frame. The method has the following beneficial effects:

(1) this foldable bicycle frame, when needs are folding, twist and move two thread bush, slide in the spout with the hand promotion clamping screw, clamping screw can stimulate the inserted bar and slide in the activity inslot, extrude the spring, shift out from in the dead lever, alright with rotate first bracing piece and second bracing piece through the dead lever, fold the device, can reduce occupation space, the transport of being convenient for, during the use, expand first bracing piece and second bracing piece, when jack and inserted bar align, under the effect of spring restoring force, the inserted bar can be inserted into the jack rapidly, realize first bracing piece, the second bracing piece is fixed with the stability of connecting rod, it can to screw up the thread bush, make the device's stability good.

(2) This foldable bicycle frame, the user can rotate the hand wheel for adjusting screw adjusts the height of saddle at two screwed pipe internal rotations, and the saddle is fixed through four telescopic links, can effectually prevent to ride the in-process, and the saddle takes place to rotate, and the device's saddle adopts the thread tightening mode, has avoided the saddle to take place to slide the problem that reduces.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

fig. 3 is an enlarged view of a structure at B in fig. 1 according to the present invention.

In the figure: 1. a first support bar; 2. a telescopic rod; 3. a vehicle seat; 4. a threaded pipe; 5. adjusting the screw rod; 6. a hand wheel; 7. a connecting rod; 701. a groove; 8. a second support bar; 9. fixing the rod; 10. a movable groove; 11. inserting a rod; 12. a long groove; 13. a spring; 14. a limiting rod; 15. a threaded sleeve; 16. a chute; 17. and fixing the screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a foldable bicycle frame, including first bracing piece 1, connecting rod 7 and second bracing piece 8, two recesses 701 have been seted up at the both ends of connecting rod 7, the one end of first bracing piece 1 and second bracing piece 8 is located two recesses 701 respectively, and run through in first bracing piece 1 and the second bracing piece 8 and be provided with two dead levers 9, and the both ends of two dead levers 9 respectively with the inner wall welding of two recesses 701, set up two activity grooves 10 in first bracing piece 1 and the second bracing piece 8, it has two inserted bars 11 to slide to inlay in two activity grooves 10, and the one end of two inserted bars 11 extends and runs through two dead levers 9, first bracing piece 1 in the device, adopt the same connected mode between second bracing piece 8 and the connecting rod 7.

The designer arranges two sliding chutes 16 on the front surfaces of the first supporting rod 1 and the second supporting rod 8, the two sliding chutes 16 are embedded with two fixed screws 17, one ends of the two fixed screws 17 are welded with the two inserting rods 11, the other ends are sleeved with two thread sleeves 15, the two inserting rods 11 are internally provided with two long grooves 12, the two long grooves 12 are embedded with two limit rods 14, two ends of the two limit rods 14 are welded with the inner walls of the two movable grooves 10, one sides of the two limit rods 14 are welded with two springs 13, the other ends of the two springs 13 are welded with the inner walls of the two long grooves 12, when the folding is needed, the two thread sleeves 15 are screwed, the fixed screws 17 are pushed by hands to slide in the sliding chutes 16, the fixed screws 17 can pull the inserting rods 11 to slide in the movable grooves 10 to extrude the springs 13, the fixed screws are moved out from the fixed rods 9, so that the first supporting rod 1 and the second supporting rod 8 can, when the device is folded, the occupied space can be reduced, the carrying is convenient, when the device is used, the first support rod 1 and the second support rod 8 are unfolded, when the jack is aligned with the inserted rod 11, the inserted rod 11 can be rapidly inserted into the jack under the action of the restoring force of the spring 13, the stable fixing of the first support rod 1, the second support rod 8 and the connecting rod 7 is realized, and the threaded sleeve 15 is screwed, so that the device has good stability, four telescopic rods 2 are welded at the top part of the first support rod 1 close to the edge, the telescopic rods 2 are formed by sleeving thick pipes and thin rods and are similar to umbrella ribs, a saddle 3 is welded at the other ends of the four telescopic rods 2, two threaded pipes 4 are welded at the centers of the corresponding sides of the first support rod 1 and the saddle 3, adjusting screw rods 5 are embedded at the other ends of the two threaded pipes 4, a hand wheel 6 is welded on the outer wall of the adjusting screw rods 5, make adjusting screw 5 at the 4 internal rotations of two screwed pipes, highly adjust saddle 3, saddle 3 fixes through four telescopic links 2, can effectually prevent the in-process of riding, and saddle 3 takes place to rotate, and the device's saddle 3 adopts the thread tightening mode, has avoided saddle 3 to take place the problem that slides and reduce, all has seted up the slot on being located the horizontal midline of two inserted bars 11 in two dead levers 9.

When the device is used, a user can unscrew the threaded sleeve 15, push the fixed screw 17 by hand, enable the fixed screw 17 to slide in the sliding groove 16, drive the inserted bar 11 to slide in the movable groove 10 and move out of the fixed bar 9, at the moment, the first support bar 1 and the second support bar 8 can rotate on the fixed bar 9, fold the device, in the sliding process of the inserted bar 11, as the limiting bar 14 is welded with the inner wall of the movable groove 10, the spring 13 can be blocked, so that the spring 13 is in a compressed state, when the device is unfolded, the first support bar 1 and the second support bar 8 can be rotated, so that the inserting hole is aligned with the inserted bar 11, under the restoring force of the spring 13, the inserted bar 11 can be rapidly reset and reinserted into the inserting hole, namely, the inserted bar enters into the fixed bar 9, at the moment, the first support bar 1 and the second support bar 8 can not rotate on the two fixed bars 9, screw up thread bush 15, fix set screw 17, just realized fixed between first bracing piece 1, second bracing piece 8 and the connecting rod 7, the user can rotate hand wheel 6 with the hand, and hand wheel 6 drives adjusting screw 5 at two screwed pipe 4 internal rotations, highly adjusts saddle 3, and in the use, four telescopic links 2 can prevent that saddle 3 from taking place to rotate, have promoted stability.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a foldable bicycle frame, includes first bracing piece (1), connecting rod (7) and second bracing piece (8), its characterized in that: two recesses (701) have been seted up at the both ends of connecting rod (7), and the one end of first bracing piece (1) and second bracing piece (8) is located two recesses (701) respectively, and runs through to be provided with two dead levers (9) in first bracing piece (1) and second bracing piece (8) to the both ends of two dead levers (9) respectively with the inner wall welding of two recesses (701), set up two activity grooves (10) in first bracing piece (1) and second bracing piece (8), slide in two activity grooves (10) and inlay and be equipped with two inserted bars (11), and the one end of two inserted bars (11) extends and runs through two dead levers (9).

2. A folding bicycle frame as claimed in claim 1, characterised in that: two sliding grooves (16) are formed in the front faces of the first supporting rod (1) and the second supporting rod (8), two fixing screw rods (17) are embedded into the sliding grooves (16), one ends of the two fixing screw rods (17) are welded with the two inserting rods (11), and the other ends of the two fixing screw rods are sleeved with the two thread sleeves (15).

3. A folding bicycle frame as claimed in claim 1, characterised in that: two elongated slots (12) are formed in the two insert rods (11), two limiting rods (14) are embedded in the two elongated slots (12), two ends of each limiting rod (14) are welded with the inner walls of the two movable grooves (10), two springs (13) are welded on one sides of the two limiting rods (14), and the other ends of the two springs (13) are welded with the inner walls of the two elongated slots (12).

4. A folding bicycle frame as claimed in claim 1, characterised in that: the top of first bracing piece (1) is close to the edge welding and has four telescopic links (2), and the other end welding of four telescopic links (2) has saddle (3).

5. A folding bicycle frame as claimed in claim 4, characterised in that: the center of the corresponding side of the first supporting rod (1) and the saddle (3) is welded with two threaded pipes (4), the other ends of the two threaded pipes (4) are embedded with adjusting screws (5), and hand wheels (6) are welded on the outer walls of the adjusting screws (5).

6. A folding bicycle frame as claimed in claim 1, characterised in that: slots are formed in the horizontal middle lines of the two inserting rods (11) in the two fixing rods (9).

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