Folding device with adjustable angle

Abstract

The angle-adjustable folder comprises a first connector, a second connector, a release button, a knob and a screw rod, the first connector is provided with a plug pin hole and a center hole, the plug pin hole is a counter bore, an elastic piece and a plug pin are arranged in the plug pin hole, one end of the elastic piece abuts against the bottom of the plug pin hole, and the other end of the elastic piece abuts against the plug pin. The second connector is provided with a containing groove, a connecting hole and a plurality of positioning holes, the release button is arranged in the containing groove, the connecting hole corresponds to the center hole, the positioning holes correspond to the bolt holes, the knob is fixedly connected with one end of the screw, and the release button is arranged at the other end of the screw in an axial moving mode. The release button is used for pushing the bolt extending into the positioning hole from the bolt hole into the bolt hole, the first connector and the second connector can rotate relatively, and after the release button is released, the elastic piece pushes the bolt to extend into the positioning hole, so that the first connector and the second connector are relatively fixed. The angle-adjustable folder provided by the utility model is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, electric bicycles and scooters, and in particular to an angle-adjustable folder for bicycles, electric bicycles and scooters. In particular, the utility model can be applied to the seat tubes of bicycles, electric bicycles and scooters, and can also be applied to the frames of bicycles and electric bicycles. Background Art

[0002] Conventional bicycle seat tubes have two clamps at each end. One clamp is used to lock the handlebar tube, and the other clamp is used to insert and lock the front fork. However, after the other clamp is inserted into the front fork, the seat tube cannot be moved up and down to adjust the angle, resulting in a fixed height. This cannot meet the needs of riders of different heights and also makes the rider feel uncomfortable.

[0003] Chinese patent document CN200992282Y discloses an adjustable bicycle seat tube, comprising a vertical tube, a horizontal tube, and a shaft. Each end of the horizontal tube has a tie bar, one of which is locked to a handle. The vertical tube and the shaft are formed separately. One end of the vertical tube has a connecting portion with a through-hole. The tie bar at the other end of the horizontal tube extends on both sides to form two arc-shaped tabs. The vertical tube connecting portion is inserted into the accommodation space between the two tabs. The two tabs are provided with through-holes that correspond to the through-holes of the connecting portion. The shaft is inserted into the through-holes of the two tabs and the through-holes of the vertical tube connecting portion and is fixedly connected to the connecting portion. The horizontal tube cooperates with the shaft via the through-holes in the tabs to form a pivot connection, allowing it to pivot about the shaft. Pivoting requires loosening the tie bar at the other end of the horizontal tube, which is inconvenient and complex. Utility Model Content

[0004] The purpose of the utility model is to provide a folder with adjustable angle, simple structure and convenient operation.

[0005] The technical solution adopted by the angle-adjustable folder disclosed in the utility model is:

[0006] The folding device of claim 1, wherein the first connecting head and the second connecting head are provided with a release button, a knob and a screw, wherein the first connecting head is provided with a latch hole and a center hole, the latch hole being a countersunk hole, an elastic member and a latch are provided in the latch hole, one end of the elastic member abuts the bottom of the latch hole, and the other end abuts the latch, the second connecting head is provided with a receiving groove, a connecting hole and a plurality of positioning holes, the release button is provided in the receiving groove, the connecting hole corresponds to the center hole, the positioning hole corresponds to the latch hole, the knob is fixedly connected to one end of the screw, the release button is axially movably provided at the other end of the screw, the screw is threadedly connected to the center hole of the first connecting head or the connecting hole on the second connecting head, the release button is used to push the latch extended from the latch hole into the positioning hole, the first connecting head and the second connecting head can rotate relative to each other, and after the release button is released, the elastic member pushes the latch into the positioning hole, so that the first connecting head and the second connecting head are relatively fixed.

[0007] As a preferred solution, the release button is provided with a convex column, the convex column corresponds to the positioning hole, and the height of the convex column is equal to the depth of the positioning hole.

[0008] As a preferred solution, the number of the positioning holes is an integer multiple of the number of the pin holes.

[0009] As a preferred solution, the second connector is provided with a connecting groove, the first connector is arranged in the connecting groove, the connecting groove divides the second connector into two connecting pieces, the accommodating groove and the positioning hole are provided on one connecting piece, and the connecting hole passes through the two connecting pieces.

[0010] As a preferred embodiment, it also includes a locking block, which is provided with a fixing foot and a screw hole, the screw passes through the screw hole, the other connecting piece is provided with a through hole, the through hole corresponds to the fixing foot, and the first connecting head is provided with a fixing hole, the fixing hole corresponds to the fixing foot.

[0011] As a preferred solution, a step is provided on the screw rod, and the step is used to abut against a locking block.

[0012] As a preferred solution, the knob is integrally formed with the other end of the screw or is detachably fixedly connected.

[0013] As a preferred solution, the edge of the knob is provided with a plurality of smooth concave arc surfaces.

[0014] As a preferred solution, a screw hole is provided on one end face of the screw, and the release button is provided with a countersunk groove. The release button is provided on one end of the screw by a screw passing through the countersunk groove, and the release button can move axially along the screw.

[0015] As a preferred solution, the second connector is provided with a mounting hole and a notch, the notch is provided at the edge of the mounting hole, the notch is provided with a through hole, and the through hole is tightened by a locking screw.

[0016] The beneficial effect of the angle-adjustable folder disclosed by the utility model is that the latch is extended into the positioning hole under the action of the elastic member, and due to the action of the latch, the first connector and the second connector are radially fixed, that is, the first connector and the second connector cannot rotate relative to each other. When the first connector and the second connector need to be rotated relative to each other, the release button is pressed, and the release button pushes the latch extended from the latch hole into the positioning hole into the latch hole, so that the first connector and the second connector can rotate relative to each other. After the release button is released, the elastic member pushes the latch into the positioning hole, so that the first connector and the second connector are relatively fixed. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the angle-adjustable folder of the utility model.

[0018] Figure 2 It is an exploded schematic diagram of the angle-adjustable folder of the utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0020] Please refer to Figure 1 and Figure 2 An angle-adjustable folder includes a first connector 10, a second connector 20, a release button 30, a knob 40, a locking block 50, and a screw 110. The knob 40 has several smooth, concave arcs on its edge to facilitate rotation and prevent slipping. In this embodiment, the screw 110 and knob 40 are fixedly connected via a fixing pin 120, a common fixing method not described here. The screw 110 is provided with a step. In other embodiments, the screw 110 and knob 40 may be integrally formed.

[0021] The first connector 10 is provided with a center hole 11, which passes through the first connector 10. A pin hole 12 is provided on one side of the first connector 10. The pin hole 12 is a countersunk hole. An elastic member 60 and a pin 70 are provided in the pin hole 12. One end of the elastic member 60 abuts the bottom of the pin hole 12, and the other end abuts the pin 70. A fixing hole is provided on the other side of the first connector 10.

[0022] The second connector 20 is provided with a connecting groove 24 and a connecting hole 23. The connecting hole 23 traverses the second connector 20 and is used to accommodate the first connector 10. The connecting groove 24 divides the second connector 20 into two connecting pieces 21 and 22. The connecting hole 23 passes through the two connecting pieces 21 and 22. The connecting piece 21 is provided with a receiving groove 211, a protrusion 212, and a positioning hole 213. The connecting hole 23 passes through the protrusion 212. In this embodiment, the connecting hole 23 on the connecting piece 21 is threaded for threaded connection with the screw 110. When the knob 40 is rotated, the screw 110 is threadedly connected to the connecting piece 21, achieving lateral movement of the screw 110. The receiving groove 211 is used to accommodate the release button 30. The number of the positioning holes 213 is an integer multiple of the number of the latch holes 12. In this embodiment, there are four positioning holes 213 and two latch holes 12. The connecting piece 22 is also provided with a through hole 221. The lower end of the second connector 20 is provided with a mounting hole 25 and a notch 26. The notch 26 is provided at the edge of the mounting hole 25. The notch 25 is provided with a through-hole 27. The through-hole 27 is tightened by a locking screw 100. This embodiment can be applied to a bicycle or a scooter. The mounting hole 25 fixes the upper tube of the bicycle front fork or the lower stem of the scooter to the second connector 20 through a fixing cap. The fixing cap is provided at the lower end of the connecting groove 24. When the locking screw 100 tightens the notch 26, the upper tube of the bicycle front fork or the lower stem of the scooter is tightly embraced by the lower end of the second connector 20.

[0023] The release button 30 is provided with a countersunk groove 31 on one side and a recess in the middle of the other side for accommodating the screw 110. A boss is provided around the recess on the other side. The boss corresponds to the positioning hole, and the height of the boss is equal to the depth of the positioning hole. A screw hole is provided on one end face of the screw 110. A screw 90 passing through the countersunk groove 31 is fixedly connected to one end of the screw 110. The release button 30 is provided at one end of the screw 110, and one end of the screw 110 is provided in the recess of the release button 30. A washer 80 is provided between the screw 90 and the release button 30. The release button 30 can move axially along the screw 110. Since the screw 90, washer 80 and screw 110 limit the release button 30, the release button 30 can move axially along the screw 110 for a distance.

[0024] The locking block 50 is provided with a fixing foot 51 and a screw hole, the screw 110 passes through the screw hole, and the other connecting piece is provided with a through hole. The fixing foot 51 corresponds to the through hole 221 on the connecting piece 22 and corresponds to the fixing hole provided on the first connecting head 10. The step on the screw 110 is used to abut the locking block 50.

[0025] When the knob 40 rotates, driving the screw 110 to be threadedly connected with the connecting hole 23 on the connecting piece 21, the knob 40 pushes the locking block 50, so that the fixing foot 51 on the locking block 50 passes through the through hole 221 on the connecting piece 22 and is inserted into the fixing hole on the first connector 10. The first connector 10 and the second connector 20 are radially fixed relative to each other, and the first connector 10 and the second connector 20 cannot rotate relative to each other. At the same time, the pin 70 extends into the positioning hole under the action of the elastic member 60. Due to the action of the pin 60, the first connector 10 and the second connector 20 are radially fixed, that is, the first connector and the second connector cannot rotate relative to each other, thereby improving the reliability of the radial fixation of the first connector 10 and the second connector 20. When it is necessary to rotate the first connector 10 and the second connector 20 relative to each other, the knob 40 is rotated to drive the screw 110 to be screwed out from the connecting hole 23 on the connecting piece 21. The step on the screw 110 pushes the locking block 50 to make the fixed foot 50 of the locking block 50 disengage from the fixing hole on the second connector 10. The release button 30 is pressed, and the boss of the release button 30 pushes the pin 70 extending from the pin hole 12 into the positioning hole into the pin hole 12. The first connector 10 and the second connector 20 can rotate relative to each other. After the release button 30 is released, the elastic member 60 pushes the pin 70 into the positioning hole, so that the first connector 10 and the second connector 20 are relatively fixed. It has good reliability, simple structure and easy operation.

[0026] In other embodiments, to achieve screwing in or out of the screw rod 110 , the threaded sections on the connecting hole 23 may be provided at different positions, or a thread may be provided in the central hole 11 of the first connector 10 .

[0027] In this embodiment, the number and positions of the positioning holes are set according to actual needs, which determines the folding position and angle of the first connector 10 and the second connector 20. This embodiment is applicable to bicycle or electric bicycle stems and scooter stems, and under certain conditions, can be used on bicycle and electric bicycle frames.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An angle-adjustable folder comprising a first connector and a second connector, characterized in that: The cam is fixedly connected to the first connector and the second connector, and the cam is fixedly connected to the first connector and the second connector.

2. The angle-adjustable folder according to claim 1, wherein: The release button is provided with a convex column, the convex column corresponds to the positioning hole, and the height of the convex column is equal to the depth of the positioning hole.

3. The angle-adjustable folder according to claim 2, wherein: The number of the positioning holes is an integral multiple of the number of the pin holes.

4. The angle-adjustable folder according to claim 2, wherein: The second connector is provided with a connecting groove, the first connector is arranged in the connecting groove, the connecting groove divides the second connector into two connecting pieces, the accommodating groove and the positioning hole are provided on one connecting piece, and the connecting hole passes through the two connecting pieces.

5. The angle-adjustable folder according to claim 4, wherein: It also includes a locking block, which is provided with a fixing foot and a screw hole. The screw passes through the screw hole. The other connecting piece is provided with a through hole, which corresponds to the fixing foot. The first connecting head is provided with a fixing hole, which corresponds to the fixing foot.

6. The angle-adjustable folder according to claim 5, wherein: The screw rod is provided with a step, and the step is used to abut against the locking block.

7. The angle-adjustable folder according to claim 6, wherein: The knob is integrally formed with the other end of the screw rod or is detachably fixedly connected.

8. The angle-adjustable folder according to claim 7, wherein: The edge of the knob is provided with a plurality of smooth concave arc surfaces.

9. The angle-adjustable folder according to claim 4, wherein: One end surface of the screw rod is provided with a screw hole, and the release button is provided with a countersunk groove. The release button is arranged on one end of the screw rod by a screw passing through the countersunk groove, and the release button can move axially along the screw rod.

10. The angle-adjustable folder according to claim 4, wherein: The second connector is provided with a mounting hole and a notch, wherein the notch is provided at the edge of the mounting hole, and a through-hole is provided on the notch, and the through-hole is tightened by a locking screw.

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