Rear fork damping device and scooter

Abstract

The utility model discloses a rear fork damping device and a scooter, the rear fork damping device comprises a rear fork, a shock absorber, a rotating shaft and a pressing plate, and the rear fork is used for being pivotally connected with a frame; the upper end of the shock absorber is used for being pivotally connected with the frame, and the lower end of the shock absorber is pivotally connected with the rotating shaft; the pressing plate is connected with the rear fork through a fastener, and part of the rotating shaft is clamped between the pressing plate and the rear fork. The rear fork damping device has the advantage of being high in appearance attractiveness.

Description

Technical Field

[0001] The utility model relates to the technical field of scooters, in particular to a rear fork shock absorbing device and a scooter. Background Art

[0002] In the related art, scooters such as bicycles and electric bicycles usually pass through the round holes at the rear fork and the lower end of the shock absorber through the locking screws to achieve a pivotable connection between the shock absorber and the rear fork. At this time, the round hole on the rear fork needs to pass through the rear fork along the width direction of the frame to facilitate the passing of the locking screws and subsequent tightening. However, the design of the opening of the round hole on the rear fork being exposed and the design of the locking screws being partially exposed on the side of the rear fork makes the scooter have a poor appearance at the rear fork. 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 provides a rear fork shock absorbing device, which has the advantage of high aesthetic appearance.

[0005] The embodiment of the utility model further provides a walking vehicle.

[0006] The rear fork shock absorbing device of the embodiment of the utility model includes a rear fork, a shock absorber, a rotating shaft and a pressure plate, wherein the rear fork is used to be pivotally connected to the frame; the upper end of the shock absorber is used to be pivotally connected to the frame, and the lower end of the shock absorber is pivotally connected to the rotating shaft; the pressure plate is connected to the rear fork by a fastener, and part of the rotating shaft is clamped between the pressure plate and the rear fork.

[0007] According to the rear fork shock absorbing device of the embodiment of the utility model, after the lower end of the shock absorber is pivotally connected to the rotating shaft, the rotating shaft is moved to the set position of the rear fork, and then the pressure plate is connected to the rear fork through the fastener to clamp part of the rotating shaft between the pressure plate and the rear fork, thereby achieving the fixing of the rotating shaft on the rear fork, and then achieving the pivotal connection between the lower end of the shock absorber and the rear fork. Among them, there is no need to set a round hole on the rear fork for the fastener to pass through, and the fastener can also not protrude from the side of the rear fork, thereby making the appearance of the rear fork shock absorbing device more beautiful.

[0008] In some embodiments, the rear fork includes a first side plate, a middle cross plate, and a second side plate connected in sequence along the axial direction of the rotating shaft. The length of the rotating shaft is smaller than the axial dimension of the middle cross plate of the rotating shaft, and part of the rotating shaft is clamped between the pressure plate and the middle cross plate.

[0009] In some embodiments, two opposite ends of the middle horizontal plate along the axial direction of the rotating shaft are respectively connected to the lower ends of the first side plate and the second side plate, and the first side plate, the middle horizontal plate and the second side plate are surrounded to form a receiving cavity with an upper end opening;

[0010] The pressing plate and the fastener are both located in the accommodating cavity.

[0011] In some embodiments, the pressing plate includes a first pressing portion and a second pressing portion arranged at intervals along the axial direction of the rotating shaft, and the shock absorber is located between the first pressing portion and the second pressing portion along the axial direction of the rotating shaft;

[0012] The rotating shaft includes a first shaft section and a second shaft section which protrude from the shock absorber on both sides of the rotating shaft along the axial direction respectively. The first shaft section is clamped between the first clamping portion and the middle transverse plate, and the second shaft section is clamped between the second clamping portion and the middle transverse plate.

[0013] In some embodiments, the pressing plate further includes a connecting portion connected between the first pressing portion and the second pressing portion, and the first pressing portion, the connecting portion and the second pressing portion are integrally formed.

[0014] In some embodiments, an avoidance groove is provided on the upper surface of the middle cross plate, and the lower end of the shock absorber is gap-fitted in the avoidance groove.

[0015] In some embodiments, the upper surface of the middle cross plate is provided with a first semicircular groove extending along the axial direction of the rotating shaft, part of the rotating shaft is fitted in the first semicircular groove, and part of the outer circumference of the rotating shaft is in close contact with the inner wall surface of the first semicircular groove.

[0016] In some embodiments, the pressing plate is provided with at least three mounting holes, and the middle cross plate is provided with threaded holes corresponding to the mounting holes one by one;

[0017] The fastener comprises a bolt, which passes through the mounting hole and is threadedly matched with the threaded hole.

[0018] In some embodiments, the lower surface of the pressure plate is provided with a second semicircular groove extending along the axial direction of the rotating shaft, part of the rotating shaft is fitted in the second semicircular groove, and part of the outer circumference of the rotating shaft is in close contact with the inner wall surface of the second semicircular groove.

[0019] The scooter according to an embodiment of the utility model comprises the rear fork shock absorbing device as described in any of the above embodiments.

[0020] The technical advantages of the scooter according to the embodiment of the utility model and the technical advantages of the rear fork shock absorbing device of the above embodiment are not repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of a rear fork shock absorbing device according to an embodiment of the utility model.

[0022] Figure 2 It is a cross-sectional view of the rear fork shock absorbing device at the first pressing portion of the pressure plate according to an embodiment of the utility model.

[0023] Figure 3 yes Figure 2 A is an enlarged view of the

[0024] Figure 4 It is a schematic diagram of a shock absorber and a pressure plate in a rear fork shock absorbing device according to an embodiment of the utility model.

[0025] Figure 5 It is a schematic diagram of a rear fork in a rear fork shock absorbing device according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 1. Rear fork; 11. First side plate; 12. Middle cross plate; 121. First semicircular groove; 122. Threaded hole; 123. Avoidance groove; 13. Second side plate; 2. Shock absorber; 3. Rotating shaft; 4. Frame; 5. Pressing plate; 51. First clamping part; 52. Connecting part; 53. Second clamping part; 54. Second semicircular groove; 55. Mounting hole; 6. Fastener. 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] Combine the following Figure 1-Figure 5 A rear fork shock absorbing device according to an embodiment of the utility model is described.

[0030] The rear fork shock absorbing device of the embodiment of the utility model comprises a rear fork 1, a shock absorber 2, a rotating shaft 3 and a pressure plate 5. The rear fork 1 is used to be pivotally connected to the frame 4. The upper end of the shock absorber 2 is used to be pivotally connected to the frame 4, and the lower end of the shock absorber 2 is pivotally connected to the rotating shaft 3. The pressure plate 5 is connected to the rear fork 1 through a fastener 6, and a part of the rotating shaft 3 is clamped between the pressure plate 5 and the rear fork 1.

[0031] According to the rear fork shock absorbing device of the embodiment of the utility model, after the lower end of the shock absorber 2 is pivotally connected to the rotating shaft 3, the rotating shaft 3 is moved to the set position of the rear fork 1, and then the pressure plate 5 is connected to the rear fork 1 through the fastener 6 to clamp part of the rotating shaft 3 between the pressure plate 5 and the rear fork 1, thereby achieving the fixing of the rotating shaft 3 on the rear fork 1, and then achieving the pivotal connection between the lower end of the shock absorber 2 and the rear fork 1. Among them, there is no need to set a circular hole on the rear fork 1 for the fastener 6 to pass through, and the fastener 6 can also not protrude from the side of the rear fork 1, thereby making the appearance of the rear fork shock absorbing device more beautiful.

[0032] It should be noted that the shock absorber 2 generally extends in the vertical direction, and includes a spring, an upper guide rod and a lower guide sleeve that are slidably connected, a first flange is provided on the outer circumference of the upper guide rod, a second flange is provided on the outer circumference of the lower guide sleeve, and the spring is sleeved on the upper guide rod and the lower guide sleeve and sandwiched between the first flange and the second flange. The upper end of the upper guide rod is pivotally connected to the frame 4, and the lower end of the lower guide sleeve is pivotally connected to the rear fork 1 through the rotating shaft 3.

[0033] In some embodiments, Figure 1 and Figure 5 As shown, the rear fork 1 includes a first side plate 11, a middle cross plate 12 and a second side plate 13 which are sequentially connected along the axial direction of the rotating shaft 3. The length of the rotating shaft 3 is smaller than the axial dimension of the middle cross plate 12 in the rotating shaft 3, and part of the rotating shaft 3 is clamped between the pressure plate 5 and the middle cross plate 12.

[0034] That is, the pressure plate 5 is connected to the middle cross plate 12 through the fastener 6, so as to clamp and fix part of the rotating shaft 3 between the pressure plate 5 and the middle cross plate 12. At this time, the lower end of the shock absorber 2 is roughly located in the middle of the rear fork 1, and the shock absorption effect on the rear end of the scooter is better. Moreover, the length of the rotating shaft 3 is smaller than the axial dimension of the middle cross plate 12 in the rotating shaft 3, so that the rotating shaft 3 does not interfere with the first side plate 11 and the second side plate 13, and the design of the first side plate 11 and the second side plate 13 is not limited by the rotating shaft 3 and the shock absorber 2, thereby making the appearance of the rear fork shock absorbing device more beautiful.

[0035] Specifically, the rotating shaft 3 is fixed at the center of the middle cross plate 12 in the width direction of the frame 4 , and the portion of the rotating shaft 3 exposed from the shock absorber 2 is clamped between the upper surface of the middle cross plate 12 and the lower surface of the pressure plate 5 .

[0036] In some embodiments, Figure 1 and Figure 2 As shown, the two opposite ends of the middle cross plate 12 along the axial direction of the rotating shaft 3 are respectively connected to the lower ends of the first side plate 11 and the second side plate 13, and the first side plate 11, the middle cross plate 12 and the second side plate 13 are surrounded to form a receiving cavity with an upper end opening. The pressing plate 5 and the fastener 6 are both located in the receiving cavity.

[0037] The middle cross plate 12 is connected to the lower ends of the first side plate 11 and the second side plate 13, so that the depth of the accommodating cavity is deeper, thereby better hiding the pressure plate 5 and the fastener 6, further improving the appearance of the rear fork shock absorbing device, and effectively preventing the fastener 6 from being loosened due to interference from external components, thereby effectively ensuring the installation reliability of the rotating shaft 3 on the rear fork 1.

[0038] In some embodiments, Figure 4 As shown, the pressure plate 5 includes a first clamping portion 51 and a second clamping portion 53 arranged at intervals along the axial direction of the rotating shaft 3. Along the axial direction of the rotating shaft 3, the shock absorber 2 is located between the first clamping portion 51 and the second clamping portion 53. The rotating shaft 3 includes a first shaft section and a second shaft section protruding from both sides of the shock absorber 2 along the axial direction of the rotating shaft 3, respectively, the first shaft section is clamped between the first clamping portion 51 and the middle transverse plate 12, and the second shaft section is clamped between the second clamping portion 53 and the middle transverse plate 12.

[0039] At this time, the middle part of the rotating shaft 3 is pivotally connected to the lower end of the shock absorber 2, and the first shaft section and the second shaft section of the rotating shaft 3 located at the end are respectively clamped and fixed on the middle horizontal plate 12 by the first clamping part 51 and the second clamping part 53. This arrangement effectively ensures the relative fixation of the rotating shaft 3 and the shock absorber 2 in the axial direction of the rotating shaft 3, and effectively prevents the shock absorber 2 from escaping from any end of the rotating shaft 3 along the axial direction of the rotating shaft 3. The pivoting reliability of the shock absorber 2 relative to the middle horizontal plate 12 is higher.

[0040] Specifically, the lengths of the first shaft section and the second shaft section are equal, and the first pressing portion 51 and the second pressing portion 53 are arranged in mirror symmetry with respect to a plane perpendicular to the axial direction of the rotating shaft 3 .

[0041] In some embodiments, Figure 4 As shown, the pressing plate 5 further includes a connecting portion 52 connected between the first pressing portion 51 and the second pressing portion 53 , and the first pressing portion 51 , the connecting portion 52 and the second pressing portion 53 are integrally formed.

[0042] The first pressing portion 51 , the connecting portion 52 , and the second pressing portion 53 are integrally formed, which not only reduces the manufacturing cost of the pressing plate 5 , but also improves the assembly efficiency of the pressing plate 5 on the middle cross plate 12 .

[0043] Specifically, the connecting portion 52 is spaced apart from the shock absorber 2 in the length direction of the frame 4 . In other words, the first pressing portion 51 , the connecting portion 52 and the second pressing portion 53 together define a U-shaped groove for accommodating the shock absorber 2 .

[0044] In some embodiments, Figure 1 and Figure 5As shown, the upper surface of the middle horizontal plate 12 is provided with an avoidance groove 123, and the lower end of the shock absorber 2 is loosely fitted in the avoidance groove 123. The design of the avoidance groove 123 ensures that when the shock absorber 2 pivots relative to the middle horizontal plate 12, the lower end of the shock absorber 2 will not interfere with the middle horizontal plate 12, thereby effectively ensuring the shock absorption function of the shock absorber 2.

[0045] Specifically, the avoidance groove 123 is disposed at the center of the middle cross plate 12 in the width direction of the frame 4 . The avoidance groove 123 is substantially a square groove, and the depth of the avoidance groove 123 is less than the thickness of the middle cross plate 12 .

[0046] In some embodiments, Figure 3 and Figure 5 As shown, the upper surface of the middle cross plate 12 is provided with a first semicircular groove 121 extending along the axial direction of the rotating shaft 3 , part of the rotating shaft 3 is fitted in the first semicircular groove 121 , and the outer circumferential surface of part of the rotating shaft 3 is in close contact with the inner wall surface of the first semicircular groove 121 .

[0047] The design of the first semicircular groove 121 realizes the limitation of the rotating shaft 3 in the length direction of the frame 4, and the rotating shaft 3 is less likely to slide relative to the middle cross plate 12, and the installation reliability of the rotating shaft 3 on the middle cross plate 12 is higher. In addition, this arrangement also makes the contact area between the middle cross plate 12 and the rotating shaft 3 larger, the friction between the two is greater, and the rotating shaft 3 is less likely to rotate relative to the pressure plate 5 and the middle cross plate 12.

[0048] Specifically, the outer contour of the cross section at any position of the rotating shaft 3 is circular, so that the outer peripheral surface of the rotating shaft 3 is in close contact with the inner wall surface of the first semicircular groove 121 .

[0049] It should be noted that the cross-sectional outer contours of the first shaft section and the second shaft section of the rotating shaft 3 may also be rectangular. In this case, the upper surface of the middle cross plate 12 may be provided with a U-shaped groove for the rotating shaft 3 to cooperate with.

[0050] In some embodiments, the pressing plate 5 is provided with at least three mounting holes 55, and the middle cross plate 12 is provided with threaded holes 122 corresponding to the mounting holes 55. The fastener 6 includes a bolt, which passes through the mounting holes 55 and is threadedly matched with the threaded holes 122.

[0051] That is, the bolts are passed through the mounting holes 55 and threadedly engaged with the threaded holes 122, so that the pressure plate 5 and the middle cross plate 12 can be connected, and the assembly efficiency of the rear fork shock absorbing device is higher.

[0052] Specifically, Figure 1 , Figure 4 and Figure 5 As shown, there are four mounting holes 55 located at the four corners of the pressure plate 5 , and four bolts pass through the corresponding mounting holes 55 and are threadedly engaged with the corresponding threaded holes 122 .

[0053] In some embodiments, the lower surface of the pressure plate 5 is provided with a second semicircular groove 54 extending along the axial direction of the rotating shaft 3 , part of the rotating shaft 3 is fitted in the second semicircular groove 54 , and the outer circumferential surface of part of the rotating shaft 3 is in close contact with the inner wall surface of the second semicircular groove 54 .

[0054] The design of the second semicircular groove 54 makes it more difficult for the rotating shaft 3 to slide relative to the pressure plate 5 in the length direction of the frame 4. On the basis that the pressure plate 5 is tightly connected to the middle cross plate 12, the rotating shaft 3 is effectively limited in the length direction of the frame 4, and the installation reliability of the rotating shaft 3 on the middle cross plate 12 is high.

[0055] At the same time, combined with the design of the first semicircular groove 121, the total contact area between the rotating shaft 3 and the pressure plate 5 and the middle horizontal plate 12 is further increased, the rotating shaft 3 is less likely to rotate relative to the middle horizontal plate 12 and the pressure plate 5, and the clamping reliability of the rotating shaft 3 on the pressure plate 5 and the middle horizontal plate 12 is higher.

[0056] It should be noted that Figure 3 As shown, after the pressure plate 5 is connected to the middle cross plate 12 by bolts, there is a certain gap between the pressure plate 5 and the middle cross plate 12, and the gap is limited to about 0.5 mm, thereby ensuring the reliability of the pressure plate 5 and the middle cross plate 12 on the rotating shaft 3.

[0057] The scooter according to the embodiment of the utility model comprises a rear fork shock absorbing device as in any of the above embodiments.

[0058] The technical advantages of the scooter according to the embodiment of the utility model and the technical advantages of the rear fork shock absorbing device of the above embodiment are not repeated here.

[0059] The mobility scooter can be a bicycle, an electric bicycle, or an electric scooter.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] 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 on 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 rear fork shock absorbing device, characterized in that: include: A rear fork, the rear fork being used to be pivotally connected to the frame; A shock absorber and a rotating shaft, wherein the upper end of the shock absorber is used to be pivotally connected to the frame, and the lower end of the shock absorber is pivotally connected to the rotating shaft; A pressure plate is connected to the rear fork via a fastener, and a portion of the rotating shaft is clamped between the pressure plate and the rear fork.

2. The rear fork shock absorbing device according to claim 1, characterized in that: The rear fork includes a first side plate, a middle cross plate and a second side plate which are sequentially connected along the axial direction of the rotating shaft. The length of the rotating shaft is smaller than the axial dimension of the middle cross plate of the rotating shaft, and part of the rotating shaft is clamped between the pressure plate and the middle cross plate.

3. The rear fork shock absorbing device according to claim 2, characterized in that: The two opposite ends of the middle horizontal plate along the axial direction of the rotating shaft are respectively connected to the lower ends of the first side plate and the second side plate, and the first side plate, the middle horizontal plate and the second side plate are surrounded to form a receiving cavity with an upper end opening; The pressing plate and the fastener are both located in the accommodating cavity.

4. The rear fork shock absorbing device according to claim 2, characterized in that: The pressing plate comprises a first pressing portion and a second pressing portion which are arranged at intervals along the axial direction of the rotating shaft, and the shock absorber is located between the first pressing portion and the second pressing portion along the axial direction of the rotating shaft; The rotating shaft includes a first shaft section and a second shaft section which protrude from the shock absorber on both sides of the rotating shaft along the axial direction respectively. The first shaft section is clamped between the first clamping portion and the middle transverse plate, and the second shaft section is clamped between the second clamping portion and the middle transverse plate.

5. The rear fork shock absorbing device according to claim 4, characterized in that: The pressing plate further includes a connecting portion connected between the first pressing portion and the second pressing portion, and the first pressing portion, the connecting portion and the second pressing portion are integrally formed.

6. The rear fork shock absorbing device according to claim 2, characterized in that: An avoidance groove is provided on the upper surface of the middle transverse plate, and the lower end of the shock absorber is clearance-fitted in the avoidance groove.

7. The rear fork shock absorbing device according to claim 2, characterized in that: The upper surface of the middle transverse plate is provided with a first semicircular groove extending along the axial direction of the rotating shaft, part of the rotating shaft is fitted in the first semicircular groove, and part of the outer circumferential surface of the rotating shaft is in close contact with the inner wall surface of the first semicircular groove.

8. The rear fork shock absorbing device according to claim 2, characterized in that: The pressing plate is provided with at least three mounting holes, and the middle cross plate is provided with threaded holes corresponding to the mounting holes one by one; The fastener comprises a bolt, which passes through the mounting hole and is threadedly matched with the threaded hole.

9. The rear fork shock absorbing device according to any one of claims 1 to 8, characterized in that: The lower surface of the pressure plate is provided with a second semicircular groove extending along the axial direction of the rotating shaft, part of the rotating shaft is fitted in the second semicircular groove, and part of the outer circumferential surface of the rotating shaft is in close contact with the inner wall surface of the second semicircular groove.

10. A mobility scooter, characterized in that: It comprises a rear fork shock absorbing device according to any one of claims 1 to 9.

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