Front suspension structure and motorcycle

Abstract

This utility model provides a front suspension structure and a motorcycle, relating to the technical field of motorcycles. The front suspension structure includes a connecting crossbar assembly, which includes a connecting crossbar and a vertical shaft. A rotating column is provided on the connecting crossbar. A bushing is fitted onto the connecting crossbar. The bushing has an upper mounting opening, through which the vertical shaft is inserted into a rotating hole and extends into a lower through hole in the bushing. An upper pressure plate is provided within the upper mounting opening to fix the vertical shaft within the bushing. The connecting crossbar of the front suspension mechanism provided by this utility model has a vertical shaft, which fixes the bushing to the connecting crossbar. The connecting crossbar can swing relative to the bushing within a certain range. When the bushing is installed on the wheel hub, the swinging of the connecting crossbar does not affect the movement of the wheel hub. Thus, the connecting crossbar can be connected to the frame, and when the wheel hub turns, the connecting crossbar remains stationary.

Description

Technical Field

[0001] This utility model relates to the technical field of motorcycles, and in particular to a front suspension structure and a motorcycle. Background Technology

[0002] Traditional motorcycle front suspension structures experience forces during braking that are not parallel to the shock absorber travel. These forces cause the front fork to compress, reducing the vehicle's lean angle and front wheel trail, resulting in vehicle instability. Utility Model Content

[0003] The purpose of this invention is to provide a front suspension structure and motorcycle to alleviate the non-parallel force experienced by the front suspension structure of a traditional motorcycle during braking. This force causes the front fork to compress, reducing the vehicle's lean angle and front wheel trail, resulting in vehicle instability.

[0004] This utility model provides a front suspension structure, including a connecting crossbar assembly. The connecting crossbar assembly includes a connecting crossbar and a vertical shaft. A rotating column is provided on the connecting crossbar, and a rotating hole is provided on the rotating column. An inner annular protrusion is provided in the rotating hole, and the inner annular protrusion divides the rotating hole into an upper rotating hole and a lower rotating hole. A bushing is fitted on the connecting crossbar, and the bushing has a lower through hole that is concentric with the rotating hole; both the upper rotating hole and the lower rotating hole are fitted with tapered sleeve bearings. The bushing is provided with an upper mounting port, and the vertical shaft is inserted into the rotating hole from the upper mounting port and extends into the lower through hole of the bushing; an upper pressure plate is provided in the upper mounting port, and the upper pressure plate is used to fix the vertical shaft in the bushing.

[0005] In an optional embodiment, the upper pressure plate is provided with an upper fixing hole, the bushing is provided with a lower fixing hole, and the lower fixing hole is connected to and concentrically arranged with the lower through hole; one end of the vertical shaft passes through the upper fixing hole and the other end passes through the lower fixing hole. In an optional embodiment, the upper pressure plate is provided with an upper through hole, which communicates with and is concentrically arranged with the upper fixing hole.

[0006] In an optional embodiment, a hub is also included, on which a bearing hole is provided. The connecting crossbar passes through the bearing hole, and a bearing is respectively mounted on both sides of the bearing hole. A pressure plate is respectively provided on both sides of the hub, and the pressure plate is used to fix the bearing in the bearing hole.

[0007] In an optional embodiment, a steering linkage assembly is also included, the steering linkage comprising an upper tube, a universal joint, a first pivot, a second pivot, and a connecting bracket connected in sequence; The connecting bracket clamps the bushing and connects to the bushing.

[0008] In an optional embodiment, the bicycle also includes a handlebar and a frame, the frame having a seat tube, the top tube being inserted from the lower end of the seat tube, and the handlebar being inserted from the upper end of the seat tube and connected to the top tube. In an optional embodiment, a front rocker arm is also included, one end of which is hinged to the frame and the other end of which is hinged to the connecting crossbar. In an optional implementation, a shock absorber is also included, one end of which is connected to the front rocker arm and the other end of which is connected to the vehicle frame. In an optional embodiment, the front rocker arm includes a left forearm and a right forearm, and a connecting rod is provided between the left forearm and the right forearm; The shock absorber is connected to the connecting rod, one end of the connecting crossbar is connected to the left forearm, and the other end is connected to the right forearm.

[0009] The front suspension mechanism provided by this utility model has a vertical shaft on the connecting crossbar, which fixes the bushing on the connecting crossbar. The connecting crossbar can swing relative to the bushing within a certain range. When the bushing is installed on the wheel hub, the swinging of the connecting crossbar does not affect the movement of the wheel hub. In this way, the connecting crossbar can be connected to the frame, and when the wheel hub turns, the connecting crossbar can remain stationary.

[0010] This utility model provides a motorcycle, including the front suspension structure described in any of the foregoing embodiments.

[0011] Compared with the prior art, the motorcycle provided by this utility model has the front suspension structure provided by this utility model, and thus has all the beneficial effects of the front suspension structure provided by this utility model. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 A schematic diagram of the connecting crossbar assembly of the front suspension structure provided in this embodiment of the utility model; Figure 2 for Figure 1 A structural schematic diagram of the connecting crossbar assembly from another angle; Figure 3 for Figure 2 The diagram shows the structural schematic of the AA section of the connecting crossbar assembly. Figure 4 for Figure 3 A schematic diagram of the connecting crossbar with section AA of the connecting crossbar assembly shown; Figure 5 for Figure 3 A schematic diagram of the bushing structure of the AA section of the connecting crossbar assembly shown; Figure 6 for Figure 1 An exploded view of the connecting crossbar assembly shown. Figure 7 A schematic diagram of the connection crossbar assembly and the contour connection of the front suspension structure provided in this embodiment of the utility model; Figure 8 for Figure 7 The diagram shows a structural schematic of the BB section connecting the connecting crossbar assembly and the contour. Figure 9 This is a schematic diagram of the front suspension structure provided in an embodiment of the present utility model; Figure 10 for Figure 9 The diagram shows a schematic diagram of the CC section of the front suspension structure. Figure 11 for Figure 9 A schematic diagram of the steering linkage of the front suspension structure shown. Figure 12 for Figure 9 A schematic diagram of the front rocker arm of the front suspension structure is shown. Figure 13 for Figure 9 The exploded view of the front suspension structure is shown.

[0014] Icons: 100 - Connecting crossbar assembly; 200 - Bushing; 201 - Upper mounting port; 202 - Lower fixing hole; 203 - Lower through hole; 300 - Upper pressure plate; 301 - Upper fixing hole; 302 - Upper through hole; 400 - Vertical shaft; 500 - Tapered sleeve bearing; 600 - Rotating hole; 601 - Upper rotating hole; 602 - Lower rotating hole; 700 - Inner annular protrusion; 800 - Wheel hub; 900 - Bearing; 110 - Steering connecting rod; 111 - Upper tube; 112 - Universal joint; 113 - First pivot; 114 - Second pivot; 115 - Connecting bracket; 120 - Handlebar; 130 - Frame; 131 - Steer tube; 140 - Shock absorber; 150 - Front swingarm; 151 - Left forearm; 152 - Right forearm; 153 - Connecting rod; 160 - Pressure plate. Detailed Implementation

[0015] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0016] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0017] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0019] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.

[0020] Example Reference Figures 1-13 This utility model provides a front suspension structure, including a connecting crossbar assembly 100. The connecting crossbar assembly 100 includes a connecting crossbar and a vertical shaft 400. A rotating column is provided on the connecting crossbar, and a rotating hole 600 is provided on the rotating column. An inner annular protrusion 700 is provided in the rotating hole 600, and the inner annular protrusion 700 divides the rotating hole 600 into an upper rotating hole 601 and a lower rotating hole 602. A bushing 200 is fitted on the connecting crossbar, and a lower through hole 203 is provided on the bushing 200, which is concentric with the rotating hole 600; a tapered sleeve bearing 500 is provided in both the upper rotating hole 601 and the lower rotating hole 602. The bushing 200 is provided with an upper mounting port 201, and the vertical shaft 400 is inserted into the rotating hole 600 from the upper mounting port 201 and extends into the lower through hole 203 of the bushing 200; an upper pressure plate 300 is provided in the upper mounting port 201, and the upper pressure plate 300 is used to fix the vertical shaft 400 in the bushing 200.

[0021] In some embodiments, the connecting crossbar assembly 100 of the front suspension mechanism has a rotating column, and the rotating shaft has an inner annular protrusion 700 in the rotating hole 600; the inner annular protrusion 700 divides the rotating hole 600 into an upper rotating hole 601 and a lower rotating hole 602; a tapered sleeve bearing 500 is disposed in both the upper rotating hole 601 and the lower rotating hole 602, the vertical shaft 400 is inserted into the rotating hole 600, and the tapered sleeve bearing 500 is sleeved on the vertical shaft 400; The bushing 200 is provided with an upper assembly port 201, through which the vertical shaft 400 can be inserted into the rotating hole 600; an upper pressure plate 300 is provided in the upper assembly port 201; the upper pressure plate 300 can be fixed to the bushing 200 by bolts, thus ensuring that the vertical shaft 400 cannot be dislodged from the rotating hole 600.

[0022] The bushing 200 is fitted onto the connecting crossbar, and there is a certain distance between the inner wall of the bushing 200 and the outer wall of the connecting crossbar, allowing the connecting crossbar to swing within the bushing 200.

[0023] A vertical shaft 400 is provided on the connecting crossbar of the front suspension mechanism, and the vertical shaft 400 fixes the bushing 200 on the connecting crossbar; the connecting crossbar can swing relative to the bushing 200 within a certain range; when the bushing 200 is installed on the wheel hub 800, the movement of the wheel hub 800 is not affected during the swinging process; in this way, the connecting crossbar can be connected to the frame 130, and the connecting crossbar can remain stationary when the wheel hub 800 turns.

[0024] Reference Figure 3 and Figure 5 In an optional embodiment, the upper pressure plate 300 is provided with an upper fixing hole 301, the bushing 200 is provided with a lower fixing hole 202, and the lower fixing hole 202 is connected to and concentrically arranged with the lower through hole 203; one end of the vertical shaft 400 passes through the upper fixing hole 301 and the other end passes through the lower fixing hole 202.

[0025] In some embodiments, the upper pressure plate 300 is provided with an upper fixing hole 301, and the bushing 200 is provided with a lower fixing hole 202. One end of the vertical shaft 400 is fitted into the upper fixing hole 301, and the other end is fitted into the lower fixing hole 202; thus, the vertical shaft 400 is precisely fitted. In an optional embodiment, the upper pressure plate 300 is provided with an upper through hole 302, which is connected to and concentrically arranged with the upper fixing hole 301.

[0026] To facilitate the disassembly of the vertical shaft 400, an upper through hole 302 communicating with the upper fixing hole 301 is provided on the upper pressure plate 300. When the vertical shaft 400 is stuck in the upper fixing hole 301, a hard object is inserted into the upper through hole 302 to remove the vertical shaft 400 from the upper fixing hole 301. When the vertical shaft 400 is stuck in the lower fixing hole 202, a hard object is inserted into the lower through hole 203 to remove the vertical shaft 400 from the lower fixing hole 202.

[0027] Reference Figure 7 and Figure 8 In an optional embodiment, a hub 800 is further included, on which a bearing hole is provided. The connecting crossbar passes through the bearing hole, and a bearing 900 is respectively assembled on both sides of the bearing hole. A pressure plate 160 is respectively provided on both sides of the hub 800, and the pressure plate 160 is used to fix the bearing 900 in the bearing hole.

[0028] The hub 800 is provided with a bearing hole, and the connecting crossbar passes through the bearing hole; and the hub 800 is provided with two pressure plates 160, which are fixed to the hub 800 by bolts; and the pressure plate 160 is sleeved on the connecting crossbar, so that the pressure plate 160 fixes the bearing 900 in the bearing hole and the bushing 200 in the bearing hole.

[0029] The hub 800 is capable of rotation, and the connecting crossbar remains stationary when the hub 800 turns; and a brake assembly is provided on the hub 800, which is prior art.

[0030] Reference Figure 9 , Figure 10 and Figure 11 In an optional embodiment, it also includes a steering connecting rod 110 assembly, the steering connecting rod 110 including an upper tube 111, a universal joint 112, a first rotating shaft 113, a second rotating shaft 114 and a connecting bracket 115 connected in sequence; The connecting bracket 115 clamps the bushing 200 and connects to the bushing 200.

[0031] Reference Figure 9 and Figure 11 In an optional embodiment, the vehicle also includes a handlebar 120 and a frame 130, wherein a riser 131 is provided on the frame 130, an upper tube 111 is inserted from the lower end of the riser 131, and the handlebar 120 is inserted from the upper end of the riser 131 and connected to the upper tube 111. In some embodiments, the handlebar 120 is inserted into the riser tube 131 of the frame 130, and the upper tube 111 of the steering linkage 110 assembly is also inserted into the riser tube 131; thus, the handlebar 120 can be rotated, which drives the steering linkage 110, which in turn drives the wheel hub 800 to turn, thereby achieving the steering of the motorcycle.

[0032] The upper tube 111 is connected to the first rotating shaft 113 via a universal joint 112. The first rotating shaft 113 is connected to the second rotating shaft 114, and the second rotating shaft 114 is mounted on the connecting bracket 115.

[0033] Reference Figure 9 and Figure 12 In an optional embodiment, a front rocker arm 150 is also included, one end of which is hinged to the frame 130 and the other end is hinged to the connecting crossbar. In an optional embodiment, a shock absorber 140 is also included, one end of which is connected to the front rocker arm 150 and the other end of which is connected to the frame 130. In an optional embodiment, the front rocker arm 150 includes a left forearm 151 and a right forearm 152, and a connecting rod 153 is provided between the left forearm 151 and the right forearm 152. The shock absorber 140 is connected to the connecting rod 153. One end of the connecting crossbar is connected to the left forearm 151, and the other end is connected to the right forearm 152.

[0034] When the current suspension structure needs to be compressed or extended, the connecting bracket 115 rotates around the second pivot 114, and the second pivot 114 rotates around the first pivot 113; the distance between the upper tube 111 and the connecting bracket 115 can be changed, and the front rocker arm 150 is articulated on the frame 130. During the bumping of the connecting crossbar, the front rocker arm 150 rotates along the articulation axis between the front rocker arm 150 and the frame 130.

[0035] One end of the left forearm 151 and the right forearm 152 are both hinged to the connecting crossbar, and the other end of the left forearm 151 and the right forearm 152 are hinged to the frame 130; a shock absorber 140 is hinged to the connecting rod 153 between the left forearm 151 and the right forearm 152, and the other end of the shock absorber 140 is hinged to the frame 130.

[0036] The front suspension mechanism provided by this utility model has a vertical shaft 400 on the connecting crossbar, which fixes the bushing 200 on the connecting crossbar. The connecting crossbar can swing relative to the bushing 200 within a certain range. When the bushing 200 is installed on the wheel hub 800, the movement of the wheel hub 800 is not affected during the swinging process. In this way, the connecting crossbar can be connected to the frame 130, and the connecting crossbar can remain stationary when the wheel hub 800 turns.

[0037] This utility model provides a motorcycle, including the front suspension structure described in any of the foregoing embodiments.

[0038] The motorcycle uses a front suspension structure. When the wheels bounce, the length of the steering linkage 110 can change. When the motorcycle turns, the handlebars 120 drive the wheel hub 800 to turn via the steering linkage 110, and the wheel hub 800 drives the bushing 200 to turn. Since the bushing 200 is mounted on the connecting crossbar, the connecting crossbar does not need to rotate with the wheel hub 800. The connecting crossbar can be connected to the frame 130 via the front swingarm 150, and the shock absorber 140 is mounted on the front swingarm 150. This invention increases the forward tilt angle and the trail of the front wheel, making the vehicle more stable when turning.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A front suspension structure, characterized in that, The system includes a connecting crossbar assembly (100), which includes a connecting crossbar and a vertical shaft (400). A rotating column is provided on the connecting crossbar, and a rotating hole (600) is provided on the rotating column. An inner annular protrusion (700) is provided in the rotating hole (600), and the inner annular protrusion (700) divides the rotating hole (600) into an upper rotating hole (601) and a lower rotating hole (602). A bushing (200) is fitted on the connecting crossbar, and a lower through hole (203) is provided on the bushing (200) and is concentric with the rotating hole (600); a tapered sleeve bearing (500) is provided in both the upper rotating hole (601) and the lower rotating hole (602); The bushing (200) is provided with an upper mounting port (201), and the vertical shaft (400) is inserted into the rotating hole (600) through the upper mounting port (201) and extends into the lower through hole (203) of the bushing (200); an upper pressure plate (300) is provided in the upper mounting port (201), and the upper pressure plate (300) is used to fix the vertical shaft (400) in the bushing (200).

2. The front suspension structure according to claim 1, characterized in that, The upper pressure plate (300) is provided with an upper fixing hole (301), and the bushing (200) is provided with a lower fixing hole (202). The lower fixing hole (202) is connected to the lower through hole (203) and is concentrically arranged. One end of the vertical shaft (400) passes through the upper fixing hole (301), and the other end passes through the lower fixing hole (202).

3. The front suspension structure according to claim 2, characterized in that, The upper pressure plate (300) is provided with an upper through hole (302), which is connected to and concentrically arranged with the upper fixing hole (301).

4. The front suspension structure according to claim 1, characterized in that, It also includes a hub (800), on which a bearing hole is provided, the connecting crossbar passes through the bearing hole, and a bearing (900) is respectively assembled on both sides of the bearing hole, and a pressure plate (160) is respectively provided on both sides of the hub (800), the pressure plate (160) is used to fix the bearing (900) in the bearing hole.

5. The front suspension structure according to claim 1, characterized in that, It also includes a steering linkage (110) assembly, which includes an upper tube (111), a universal joint (112), a first pivot (113), a second pivot (114), and a connecting bracket (115) connected in sequence. The connecting bracket (115) clamps the bushing (200) and is connected to the bushing (200).

6. The front suspension structure according to claim 5, characterized in that, It also includes a handlebar (120) and a frame (130), on which a riser (131) is provided, and an upper tube (111) is inserted from the lower end of the riser (131). The handlebar (120) is inserted from the upper end of the riser (131) and connected to the upper tube (111).

7. The front suspension structure according to claim 6, characterized in that, It also includes a front rocker arm (150), one end of which is hinged to the frame (130) and the other end is hinged to the connecting crossbar.

8. The front suspension structure according to claim 7, characterized in that, It also includes a shock absorber (140), one end of which is connected to the front rocker arm (150) and the other end of which is connected to the frame (130).

9. The front suspension structure according to claim 8, characterized in that, The front rocker arm (150) includes a left forearm (151) and a right forearm (152), and a connecting rod (153) is provided between the left forearm (151) and the right forearm (152). The shock absorber (140) is connected to the connecting rod (153), one end of the connecting crossbar is connected to the left forearm (151), and the other end is connected to the right forearm (152).

10. A motorcycle, characterized in that, Includes the front suspension structure as described in any one of claims 1-9.

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