Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
  • B62K15/00—Collapsible or foldable cycles
  • B62K15/006—Collapsible or foldable cycles the frame being foldable

Definitions

• the utility model relates to a folding frame for folding bicycles and assisting electric vehicles. Background technique
• FIG. 200820146783. 4 discloses a bicycle folding device, which has a top rod and a ejector on the handle connected to the leading edge. One end is fixed on the handle fixed shaft of the handle, and the other end is connected with the roller shaft which can be tightly pressed into the two lugs of the front edge of the folding device. If the handle of the folder is mounted on the frame, the side of the chain is provided. When the distance between the five-way and the folder is short, so that the chain block blocks the handle, the folder is inconvenient to use. Utility model content
• the utility model aims to provide a novel folding frame which is convenient to operate, and can effectively prevent the interference between the chain plate and the locking device.
• the utility model is realized as follows:
• the utility model relates to a folding frame, which is composed of a foldable front and rear two sections.
• the front end of the forearm is hinged on one side with the front end of the middle arm, and the other side is provided with a locking device.
• the locking device comprises a handle and a fixing rod, and the handle a fixed shaft that is hingedly disposed on a section of the folding frame, the fixed shaft protrudes from the folding frame, and the handle is provided with a ram, the front end of the ejector pin can be placed against the other frame and the parallel shaft is disposed Fixed rod.
• the fixing shaft end is provided with a card slot, the card slot can accommodate a spring piece, and the fixing shaft fixes the handle by the spring piece.
• a torsion spring is disposed on the fixed shaft, and the torsion spring is disposed at a hinge of the handle and the fixed shaft.
• the fixed shaft and the fixed rod are perpendicular to the center reference plane of the frame, and the rotating surface of the handle is parallel to the center reference surface of the frame.
• the handle is provided with a fixing member, and the top rod is adjustably disposed on the fixing member.
• the fixing member is a ejector fixing cap provided with an internal thread, and the ejector rod is provided with an external thread to cooperate with the ejector fixing cap.
• the fixing member is a ejector fixing shaft provided with a threaded hole.
• the handle is provided with a side plate, the side plate is adjacent to the surface of the folding frame, the side plate is provided with a groove, the side plate is away from the surface of the frame, and the side plate is provided with a through hole for accommodating the fixed shaft,
• the fixing member is arranged between the side plates.
• the groove is arcuate.
• the front arm or the middle arm is provided with a protruding step, and the outer surface of one end of the side plate is disposed on the step protruding from the forearm or the middle arm, and the outer surface of the end of the side plate is provided with an arc-shaped protrusion
• the protrusion and the step protruding from the forearm or the middle arm limit the handle.
• the utility model provides a folding frame, which can be locked up and down by a handle, which can lock or loosen the locking device, is more convenient to use, has convenient operation and simple structure, and the folding frame disclosed by the utility model even if The handle of the chain plate and the locking device overlaps in the longitudinal direction of the folding frame and does not affect the operation of the locking device.
• Figure 1 is a schematic view of the folding frame of the present invention
• FIG. 2 is a schematic view showing the state of the handle when the folding frame of the present invention is locked
• FIG. 3 is a schematic view showing the state of the handle when the handle of the folding frame of the present invention is released;
• Figure 4 is a perspective view of the folding frame of the present invention when it is released;
• Figure 5 is a partial enlarged view of the folding frame of the utility model when it is released;
• Figure 6 is a perspective view of the folding frame of the present invention when locked
• Figure 7 is a partial enlarged view of the folding frame of the utility model when it is locked
• Figure 8 is a perspective view of a handle structure of the folding frame of the present invention.
• Figure 9 is a perspective view of another handle structure of the folding frame of the present invention.
• Figure 10 is an assembled view of the handle and the fixed shaft of the folding frame of the present invention. detailed description
• a folding frame consisting of a foldable front and rear sections, as shown in Figures 1-3, including a forearm 2, a middle arm 3, a seat tube 5, a five-way 7, a rear fork 6, and a locking device 1
• the middle arm 3 and the rear fork 6 are respectively connected to the seat tube 5
• Fig. 2 is a state diagram when the folding frame is locked
• Fig. 3 is a state diagram when the folding frame is released.
• the rear end side of the front arm 1 is rotatably connected to the front end side of the middle arm 3, and the locking device 1 is disposed on the other side.
• the locking device includes a handle 11 and a fixing rod 15, respectively, and the handle 11 and the fixing rod 15 are respectively located on the folding frame.
• the handle 11 is arranged on the forearm 2 or the middle arm 3
• the fixing rod 15 is arranged on the middle arm 3 or on the forearm 2
• the handle 11 and the fixed rod 15 are respectively located on the folded two sections of the folding frame, as shown in Fig.
• the middle arm 3 is provided with a fixed shaft 16, the fixed shaft 16 protrudes from the middle arm of the frame, and the handle 11 is fixed by
• the shaft 16 is rotatably disposed on the middle arm 3, and the front arm 1 is provided with a fixing rod 15 parallel to the fixed shaft 16.
• the fixed shaft 16 and the fixed rod 15 are perpendicular to the folding frame center reference surface H.
• the rotating surface of the handle 11 is parallel to the frame center reference surface H, that is, parallel to the disk surface of the chain plate 4, so that when the chain plate 4 is mounted on the five-way 7, it protrudes from the folding frame in the lateral direction of the folding frame.
• the handle 11 even if the distance between the five-way 7 and the handle 11 is short, so that the chain plate 4 and the handle 11 are coincident in the longitudinal direction of the folding frame, as shown in Fig. 1, the folding frame can be easily locked or loosened. .
• the handle 11 is provided with a jack 17 which is pressed to the dead point, and the jack 17 abuts against the fixing rod 15, that is, when the center of the fixed shaft 16, the fixed rod 15 and the top rod 17 are fixed.
• the line is on the same plane, and the folding frame is tightly locked. Due to the friction between the fixing rod 15 and the ram 17, the handle 11 is not easily rotated.
• the handles 11 are provided with side plates 112, 11 3 on both sides, and the side plates 11 3 are close to the folding frame surface, 112 is away from the frame surface, and the side plates 112, 11 3 are provided with through holes.
• the fixing shaft 16 passes through the through hole 116 of the side plates 112, 11 3 , and the end of the fixing shaft 16 is provided with a card slot, and the handle 11 is fixed by accommodating the spring piece 19 in the card slot, the two A fixing member is disposed between the side plates 112 and 11 3 , and the top rod 17 is disposed on the fixing member.
• the fixing member is a top rod fixing cap 111 having an inner screw hole. As shown in FIG. 8 , the top rod 17 is provided.
• the fixing member can also be a top with a threaded hole 119.
• the rod fixing shaft 118 as shown in FIG. 9, the top rod fixing shaft 118 is fixed to the handle 11 through the connecting hole 117 on the handle 11, and the side plate 11 3 is provided with an arc-shaped groove 115, and the handle 11 is locked.
• the fixing rod 15 is arranged in the groove 115 along the arc of the groove 115, and the side plate 11 3 is provided with the through hole 116-end.
• the outer surface is attached to the step 20 of the middle arm 3 or the forearm 1 , and the outer surface of the outer surface is provided with an arc-shaped protrusion 114.
• the handle 11 When the handle 11 is rotated clockwise or counterclockwise, the end of the protrusion 114 Restricting the step of the forearm 1 or the middle arm 3, but when the folding frame is locked, the position of the handle 11 is within the range of its rotation, even when the folding frame is folded, even if the handle 11 is rotated to the extreme position When the folding frame is unfolded and locked, the handle 11 only needs to be rotated by a small angle.
• the handle 11 is flush with the frame at the position where it is located, and the locking device is not easily loosened by accident.
• the forearm 2 and the middle arm 3 are connected by the first folded body 12 and the second folded body 13 , as shown in FIGS. 4-7 , the first folded body 12 is welded on the forearm 2 , The second folding body 1 3 is welded to the middle arm 3, the first folding body 12 and the second folding body 13 are hinged by the hinge shaft 14, and the side plate 11 3 is provided with a hinge hole 116 - the outer surface of the end is attached to the first folding On the body 12 or the second folded body 1 3, the protrusion 114 of the outer surface of the side plate 11 3 The end portion is restrained against the side of the first folded body 12 or the second folded body 13.
• the handle 11 is quickly offset, and a torsion spring 18 is provided at the hinge of the handle 11 and the fixed shaft 16.
• a torsion spring 18 is provided at the hinge of the handle 11 and the fixed shaft 16.
• the end of the fixed shaft 16 is provided with a card slot, the card slot can accommodate the spring piece 19, and the spring piece 19 is placed outside the handle 11 to fix the handle 11 to the fixed shaft 16.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Steering Devices For Bicycles And Motorcycles (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=45549560

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (3)

Citations (6)

Family Cites Families (4)

• 2011
  • 2011-06-23 CN CN 201120228813 patent/CN202138484U/zh not_active Expired - Fee Related
• 2012
  • 2012-04-09 WO PCT/CN2012/073633 patent/WO2012174921A1/zh not_active Ceased
  • 2012-04-09 EP EP12802636.6A patent/EP2724923A4/en not_active Withdrawn
  • 2012-04-09 JP JP2014516172A patent/JP5816746B2/ja not_active Expired - Fee Related

Patent Citations (6)

Non-Patent Citations (1)

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