Front fork assembly and scooter

Abstract

The front fork assembly comprises a vertical pipe, a steering pipe, a pressing piece and an upper shoulder, and the steering pipe is rotationally assembled on the peripheral side of the vertical pipe through a bearing; the pressing piece is arranged on the peripheral side of the vertical pipe and used for abutting against the bearing so that the bearing can be limited in the axial direction of the vertical pipe. And the upper shoulder is fixed on the peripheral side of the pressing piece. According to the front fork assembly, the installation height of the folding lower seat can be reduced, the height size of the front fork assembly in the vertical direction is reduced, and therefore the problems that the occupied space is large, and packaging and transportation are not facilitated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of scooters, in particular to a front fork assembly and a scooter. Background Art

[0002] A double shoulder front fork is a front wheel fixing member with fork tubes arranged on both sides of the wheel. Compared with the traditional single shoulder front fork, the double shoulder front fork has better structure and support strength. However, the double shoulder front fork in the prior art has the problems of poor locking effect between the upper shoulder cover and the vertical tube, easy damage to the screw thread on the vertical tube, and the position of the folding lower seat installed on the vertical tube is high, which occupies a lot of space and is not conducive to packaging and transportation. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model proposes a front fork assembly, which can reduce the installation height of the foldable lower seat and reduce the height dimension of the front fork assembly in the vertical direction, thereby avoiding the problem of occupying a lot of space and being unfavorable for packaging and transportation.

[0005] The embodiment of the utility model also provides a scooter including the front fork assembly.

[0006] The front fork assembly of the utility model embodiment includes:

[0007] vertical pipe;

[0008] A steering tube, the steering tube being rotatably mounted on the outer peripheral side of the vertical tube through a bearing;

[0009] A pressing member, the pressing member is arranged on the outer peripheral side of the vertical tube, and the pressing member is used to stop the bearing to achieve the axial limitation of the bearing on the vertical tube;

[0010] An upper shoulder is fixed on the outer peripheral side of the pressing member to achieve a rotation-stopping limit for the pressing member.

[0011] In some embodiments, the clamping member is threadedly assembled on the outer peripheral side of the steering tube, and the upper shoulder is clamped and fixed on the outer peripheral side of the clamping member.

[0012] In some embodiments, the pressing member has a top end surface and a bottom end surface which are arranged opposite to each other in the axial direction of the vertical pipe, and the upper shoulder is located between the top end surface and the bottom end surface.

[0013] In some embodiments, in the axial direction along the vertical tube, the thickness dimension of the upper shoulder is not less than the length dimension of the clamping member.

[0014] In some embodiments, two fork tubes are included, the upper shoulder is provided with a first hole and two second holes, the first hole is located between the two second holes, the clamping member is clamped and fixed in the first hole, and the two fork tubes are clamped and fixed in the two second holes respectively.

[0015] In some embodiments, the clamping member includes a first section and a second section, the outer diameter of the first section is larger than the outer diameter of the second section, the second section is located between the bearing and the first section and is used to stop the bearing, and the upper shoulder is fixed on the outer peripheral side of the first section.

[0016] In some embodiments, an annular groove is provided on the outer peripheral side of the pressing member, and the annular groove is located between the first section and the second section and extends along the circumference of the pressing member to close into a circle.

[0017] In some embodiments, a groove is provided on a side of the second section facing the bearing, and the groove is used for embedding a ball of the bearing.

[0018] In some embodiments, a folding seat is included, which is fixed to the outer peripheral side of the vertical pipe, and the folding seat is located on the side of the pressing member and the upper shoulder away from the bearing.

[0019] The scooter of the embodiment of the utility model comprises the front fork assembly as described in any of the above embodiments.

[0020] Beneficial effect: The front fork assembly of the embodiment of the utility model can reduce the installation height of the folded lower seat, and reduce the height dimension of the front fork assembly in the vertical direction, thereby avoiding the problem of occupying a lot of space and being unfavorable for packaging and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic cross-sectional view of a front fork assembly at a vertical tube according to an embodiment of the utility model.

[0022] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the middle clamp and upper shoulder assembly.

[0023] Figure 3 It is a partial cross-sectional schematic diagram of a front fork assembly according to an embodiment of the utility model.

[0024] Figure 4 It is a top view schematic diagram of a front fork assembly according to an embodiment of the utility model.

[0025] Figure 5 yes Figure 3 A partial enlarged schematic diagram of the upper shoulder and the clamping piece.

[0026] Reference numerals:

[0027] 1-vertical tube; 2-steering tube; 3-bearing; 4-pressing piece; 41-first section; 42-second section; 43-ring groove; 44-groove; 5-upper shoulder; 6-fork tube; 7-folding seat. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0029] like Figure 1 As shown, the front fork assembly of the embodiment of the utility model comprises a vertical tube 1, a steering tube 2, a clamping member 4 and an upper shoulder 5. The vertical tube 1, the steering tube 2, the clamping member 4 and the upper shoulder 5 can all be made of metal and can be processed and formed by casting, thereby meeting the use requirements of structural strength.

[0030] like Figure 1 As shown, the vertical tube 1 can be generally a round tube and can extend in the up-down direction, and the steering tube 2 can also be generally a round tube, and the radial dimension of the steering tube 2 is larger than the radial dimension of the vertical tube 1. The steering tube 2 is rotatably assembled on the outer peripheral side of the vertical tube 1 through the bearing 3. For example, the steering tube 2 can be rotatably assembled on the outer peripheral side of the vertical tube 1 through two bearings 3, one of which can be arranged at the pipe opening at the top end of the steering tube 2, and the other bearing 3 can be arranged at the pipe opening at the bottom end of the steering tube 2. The steering tube 2 is connected to the frame, and when in use, the vertical tube 1 can rotate relative to the steering tube 2, thereby meeting the use requirements of steering.

[0031] The pressing member 4 is arranged on the outer peripheral side of the vertical tube 1, and the pressing member 4 is used to stop the bearing 3 to achieve the axial limit of the bearing 3 in the vertical tube 1. Figure 2 As shown, the clamping member 4 may be in the shape of a screw sleeve, the inner peripheral wall of the clamping member 4 may be provided with an internal thread, the outer peripheral side of the vertical pipe 1 may be provided with an external thread, and the clamping member 4 may be threadedly assembled on the outer peripheral side of the vertical pipe 1. In some other embodiments, the clamping member 4 may also be

[0032] The pressing member 4 may be located on the upper side of the upper bearing 3 of the two bearings 3 , and the bottom end of the pressing member 4 may abut against the top side of the upper bearing 3 , thereby pressing the bearing 3 downward.

[0033] It should be noted that the wall of the steering tube 2 may be provided with a structure such as a step, and the bearing 3 located at the top may be matched with the step of the steering tube 2, so that the bearing 3 may be clamped and fixed with the help of the step when the clamping member 4 is pressed down. Similarly, the bottom side of the steering tube 2 may also be provided with a structure such as a step, and the bearing 3 at the bottom side may also be assembled at the step, that is, the bearings 3 at the upper and lower ends of the steering tube 2 are generally arranged in a mirror-symmetrical manner.

[0034] The upper shoulder 5 is fixed to the outer peripheral side of the pressing member 4. For example, the upper shoulder 5 may be provided with a through hole, and the through hole is provided with a slot, and the slot connects the through hole with the outer surface of the upper shoulder 5. Figure 2 As shown, the clamping member 4 can be inserted into the through hole of the upper shoulder 5, and the slot can be equipped with fasteners such as screws. The fasteners can be used to tighten the through hole, so that the upper shoulder 5 can be clamped and fixed on the outer peripheral side of the clamping member 4.

[0035] In the front fork assembly of the embodiment of the utility model, the upper shoulder 5 and the clamping piece 4 are arranged overlapping in the horizontal direction. Compared with the situation in the related art that the upper shoulder 5 is fixed above the clamping piece 4, the upper and lower spaces occupied by the upper shoulder 5 and the clamping piece 4 are reduced. Since the height dimension of the upper shoulder 5 is reduced, the folding lower seat installed above the upper shoulder 5 can be moved downward and can directly approach the clamping piece 4, thereby reducing the installation height of the folding lower seat, and then reducing the height dimension of the front fork assembly in the vertical direction, thereby avoiding the problem of occupying a lot of height space and being unfavorable for packaging and transportation.

[0036] Secondly, since the upper shoulder 5 is fixed on the outer peripheral side of the clamping piece 4, compared with the situation in the prior art where the upper shoulder 5 is fixed on the outer peripheral side of the thread of the vertical pipe 1, since it does not contact the external thread on the outer peripheral side of the vertical pipe 1, damage to the thread is avoided and the overall load-bearing effect is improved.

[0037] In addition, compared with the prior art that uses a bowl assembly structure (including a stop plate, a back-tightening nut, etc.) to clamp the bearing 3, the clamping member 4 is equivalent to integrating multiple parts of the bowl assembly structure, reducing the number of parts, reducing costs and simplifying the assembly process. Since the upper shoulder 5 is fixed to the outer peripheral side of the clamping member 4, the clamping member 4 can be stopped by the upper shoulder 5, so that the locking effect of the clamping member 4 is still achieved when the stop plate is removed, meeting the use requirements.

[0038] In some embodiments, the clamping member 4 is threadedly assembled on the outer peripheral side of the steering tube 2, and the upper shoulder 5 is clamped and fixed on the outer peripheral side of the clamping member 4. In some other embodiments, the clamping member 4 can also be directly fixed to the vertical tube 1, for example, it can be welded, bonded, etc. The upper shoulder 5 can also be assembled on the outer peripheral side of the clamping member 4 by interference fitting.

[0039] In some embodiments, the pressing member 4 has a top end surface and a bottom end surface which are arranged opposite to each other in the axial direction of the vertical tube 1, and the upper shoulder 5 is located between the top end surface and the bottom end surface. Figure 2As shown, the pressing member 4 is generally arranged to extend in the up-down direction, the top end surface is the upper end surface of the pressing member 4, and the bottom end surface is the lower end surface of the pressing member 4. In the up-down direction, the length dimension of the upper shoulder 5 is not greater than the length dimension of the pressing member 4, and the upper surface of the upper shoulder 5 is located at the lower side of the upper end surface of the pressing member 4, and the lower surface of the upper shoulder 5 is located at the upper side of the lower end surface of the pressing member 4, so that the upper shoulder 5 and the pressing member 4 can completely overlap in the up-down direction, so that the occupation of the height space can be minimized.

[0040] In some embodiments, in the axial direction of the vertical tube 1, the thickness dimension of the upper shoulder 5 is not less than the length dimension of the pressing member 4. Figure 2 As shown, the thickness dimension of the upper shoulder 5 can be dimension M, and the length dimension of the clamping piece 4 can be dimension L, and the dimension L is larger than the dimension M. This facilitates the upper shoulder 5 and the clamping piece 4 to be completely overlapped in the up and down directions.

[0041] In some embodiments, the front fork assembly includes two fork tubes 6, the upper shoulder 5 is provided with a first hole and two second holes, the first hole is located between the two second holes, the clamping piece 4 is clamped and fixed in the first hole, and the two fork tubes 6 are respectively clamped and fixed in the two second holes.

[0042] For example, Figures 3 to 5 As shown, the fork tube 6 can be in the shape of a circular tube, and the two fork tubes 6 can be arranged in parallel and spaced apart in the left-right direction. The upper shoulder 5 can be a V-shaped structure as a whole, and the first hole can be located at the center of the upper shoulder 5, and the first hole can be regarded as a through hole on the upper shoulder 5 in the above embodiment. The two second holes can be respectively arranged at the left and right ends of the upper shoulder 5, and the two second holes are arranged substantially in mirror symmetry with respect to the first hole.

[0043] The first hole and each second hole may be provided with a slot on the hole wall, the slot extending in the up-down direction and penetrating the upper shoulder 5, and the first hole and each second hole are connected to the outer peripheral surface of the upper shoulder 5 through the corresponding slot. During assembly, each slot may be equipped with a fastener, and the opening of the slot may be adjusted by the fastener, so that the aperture size of the first hole and the second hole can be adjusted, thereby meeting the assembly requirements of clamping and fixing the pressing member 4 and the fork tube 6.

[0044] In some embodiments, the clamping member 4 includes a first section 41 and a second section 42 , the outer diameter of the first section 41 is larger than the outer diameter of the second section 42 , the second section 42 is located between the bearing 3 and the first section 41 and is used to stop against the bearing 3 , and the upper shoulder 5 is fixed on the outer peripheral side of the first section 41 .

[0045] For example, Figure 2As shown, the first section 41 and the second section 42 can be integrally formed, the first section 41 can be located above the second section 42, the first section 41 and the second section 42 can both be tubular, the inner diameter of the first section 41 and the inner diameter of the second section 42 can be the same, and the outer diameter of the first section 41 is larger than the outer diameter of the second section 42, that is, the wall thickness of the first section 41 is thicker than the wall thickness of the second section 42.

[0046] The upper shoulder 5 can be clamped and fixed on the outer peripheral side of the first section 41, and the upper shoulder 5 is located between the upper end surface and the lower end surface of the first section 41. Since the wall thickness of the first section 41 is relatively thick, the assembly requirements of the structural strength of the upper shoulder 5 are fully met.

[0047] The bottom end of the second section 42 can stop against the bearing 3. Since the wall thickness of the second section 42 is relatively thin, the second section 42 can extend into the steering tube 2, thereby enhancing the limiting cooperation effect of the clamping piece 4 and the steering tube 2, etc., ensuring the stability of the assembly and also ensuring the adequacy of the stop between the second section 42 and the bearing 3.

[0048] In some embodiments, the outer peripheral side of the pressing member 4 is provided with an annular groove 43, for example, Figure 2 As shown, the annular groove 43 may be a rectangular groove, and the annular groove 43 is located between the first section 41 and the second section 42 and extends along the circumference of the pressing member 4 to form a closed circle. During processing, the annular groove 43 may be used for the tool to retract.

[0049] In some embodiments, a groove 44 is provided on the side of the second section 42 facing the bearing 3, and the groove 44 is used for the balls of the bearing 3 to be embedded. Figure 2 As shown, the groove 44 can be generally a quarter arc groove, and the groove 44 can be extended along the circumference of the second section 42 to form a closed circle. During assembly, the ball of the bearing 3 can be embedded in the groove 44 and fit with the groove wall of the groove 44, so that the pressing effect of the pressing member 4 on the bearing 3 can be ensured, and the limit constraint on the ball is increased or decreased, ensuring the stability of operation.

[0050] In some embodiments, the front fork assembly includes a folding seat 7, which is fixed to the outer peripheral side of the vertical tube 1, and the folding seat 7 is located on the side of the pressing member 4 and the upper shoulder 5 away from the bearing 3. Figures 1 to 5 As shown, the folding seat 7 can be a folding lower seat, and the folding seat 7 can be clamped and fixed on the outer peripheral side of the top end of the vertical pipe 1. The folding seat 7 can be rotatably assembled with the folding upper seat, etc., so as to realize the use needs of folding the handlebars, etc.

[0051] In some embodiments, a lower shoulder may be provided between the two fork tubes 6, and the lower shoulder may be located at the lower side of the upper shoulder 5. The vertical tube 1 and the two fork tubes 6 may be clamped and fixed with the lower shoulder, and the vertical tube 1 and the two fork tubes 6 may be connected as a whole via the upper shoulder 5 and the lower shoulder.

[0052] In some embodiments, the bottom end of each fork tube 6 may be equipped with a shock absorber, which may be a spring shock absorber, a hydraulic shock absorber, etc., so as to meet the use needs of shock absorption during riding.

[0053] The walking vehicle according to the embodiment of the present utility model is described below.

[0054] The walking vehicle of the embodiment of the utility model comprises a front fork assembly, which can be the front fork assembly described in any of the above embodiments. The walking vehicle can be a bicycle, a scooter, an electric vehicle, or other vehicles that need to be equipped with a front fork assembly.

[0055] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations of the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A front fork assembly, characterized in that: include: Vertical pipe (1); A steering tube (2), the steering tube (2) being rotatably mounted on the outer peripheral side of the vertical tube (1) via a bearing (3); A pressing piece (4), the pressing piece (4) being arranged on the outer peripheral side of the vertical pipe (1), and the pressing piece (4) being used to stop the bearing (3) to achieve the axial limitation of the bearing (3) in the vertical pipe (1); An upper shoulder (5) is fixed on the outer peripheral side of the pressing member (4) to achieve rotation-stopping and limiting of the pressing member (4).

2. The front fork assembly according to claim 1, characterized in that: The clamping piece (4) is threadedly assembled on the outer peripheral side of the steering tube (2), and the upper shoulder (5) is clamped and fixed on the outer peripheral side of the clamping piece (4).

3. The front fork assembly according to claim 1, characterized in that: The pressing piece (4) has a top end surface and a bottom end surface which are arranged opposite to each other in the axial direction of the vertical pipe (1), and the upper shoulder (5) is located between the top end surface and the bottom end surface.

4. The front fork assembly according to claim 3, characterized in that: In the axial direction along the vertical pipe (1), the thickness dimension of the upper shoulder (5) is not less than the length dimension of the pressing piece (4).

5. The front fork assembly according to claim 1, characterized in that: It comprises two fork tubes (6), the upper shoulder (5) is provided with a first hole and two second holes, the first hole is located between the two second holes, the clamping member (4) is clamped and fixed in the first hole, and the two fork tubes (6) are clamped and fixed in the two second holes respectively.

6. The front fork assembly according to claim 1, characterized in that: The clamping member (4) comprises a first section (41) and a second section (42); the outer diameter of the first section (41) is greater than the outer diameter of the second section (42); the second section (42) is located between the bearing (3) and the first section (41) and is used to abut against the bearing (3); and the upper shoulder (5) is fixed on the outer peripheral side of the first section (41).

7. The front fork assembly according to claim 6, characterized in that: An annular groove (43) is provided on the outer peripheral side of the pressing piece (4); the annular groove (43) is located between the first section (41) and the second section (42) and extends along the circumference of the pressing piece (4) to form a closed circle.

8. The front fork assembly according to claim 6, characterized in that: A groove (44) is provided on a side of the second section (42) facing the bearing (3), and the groove (44) is used for embedding a ball of the bearing (3).

9. The front fork assembly according to any one of claims 1 to 8, characterized in that: It comprises a folding seat (7), which is fixed on the outer peripheral side of the vertical pipe (1), and the folding seat (7) is located on the side of the pressing piece (4) and the upper shoulder (5) facing away from the bearing (3).

10. A mobility scooter, characterized in that: The invention comprises a front fork assembly as claimed in any one of claims 1 to 9.

Images