CN218617030U

CN218617030U - Invisible shock-absorbing front fork of bicycle

Info

Publication number: CN218617030U
Application number: CN202222725154.XU
Authority: CN
Inventors: 张家钟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-03-14
Anticipated expiration: 2032-10-17

Abstract

The utility model relates to the technical field of bicycles, in particular to a hidden shock absorption front fork of a bicycle, which comprises a shock absorption component and a pair of fork leg bodies; the damping assembly comprises a damping seat, a damping main shaft and a damping sleeve, a damping cavity penetrating through the upper end of the damping seat is arranged in the damping seat, a damping spring is arranged in the damping cavity, the damping sleeve is movably sleeved on the damping main shaft, and the lower end of the damping main shaft movably penetrates through the damping cavity; the upper end of the damping main shaft is also provided with an adjusting section, an adjusting spring is sleeved on the adjusting section, and the upper end of the adjusting section is in threaded connection with an adjusting screw for fixing the adjusting spring; the utility model provides a damping component which can greatly improve the damping effect of the front fork of the bicycle; during the riding process of the bicycle, the damping spring elastically supports the damping sleeve and the damping main shaft, and the damping sleeve and the damping main shaft absorb jolt generated on the ground by virtue of elasticity of the damping main shaft, so that the bicycle frame is prevented from being broken; because the damping cavity is internally provided with the buffer spring, the bicycle is prevented from exceeding the damping stroke when the displacement of the damping sleeve is pressed down by a heavy load, and the safety of the damping structure is improved.

Description

Invisible shock-absorbing front fork of bicycle

Technical Field

The utility model relates to a bicycle shock attenuation technical field, in particular to stealthy damping front fork of bicycle.

Background

The front fork component is located the place ahead position in bicycle structure, its upper end links to each other with the handlebar part, frame part and head tube cooperation, the lower extreme and the cooperation of front axle spare, constitute the guide system of bicycle, the front fork is as one of the important part of bicycle, the comfort level that bicycle went is directly influenced to the good or bad shock attenuation effect of front fork, the shock-absorbing function that current front fork adopted sets up shock-absorbing function on two yoke arms mostly, can absorb the shake through the shock-absorbing structure on the yoke arm on the vibration dispersion transmission front tyre produced like this, certain shock-absorbing function has, but two remaining vibrations of front fork arm are finally gathered on the front fork riser through the front fork shoulder and are finally transmitted on driver's arm, lead to driver's arm discomfort for a long time, therefore shock-absorbing structure among the prior art still has great limitation.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides an invisible shock attenuation front fork of bicycle can absorb the whole vibrations that produce of front fork, can show and improve bicycle shock attenuation effect, improves the comfort level of riding to it is whole more succinct pleasing to the eye.

The technical proposal adopted by the utility model is that; a bicycle invisible shock absorption front fork comprises a shock absorption assembly and a pair of fork leg bodies; the damping assembly comprises a damping seat, a damping main shaft and a damping sleeve, a damping cavity penetrating through the upper end of the damping seat is arranged in the damping seat, a damping spring is arranged in the damping cavity, and a buffer spring with the height lower than that of the damping spring is arranged in the damping cavity corresponding to the inner side of the damping spring; the damping sleeve is movably sleeved on the damping main shaft, and the lower end of the damping main shaft movably penetrates into the damping cavity and penetrates through the buffer spring and the damping spring, so that the upper end of the damping spring is abutted against the lower end of the damping sleeve; the upper end of the damping main shaft is also provided with an adjusting section, an adjusting spring is sleeved on the adjusting section, and the upper end of the adjusting section is screwed with an adjusting screw rod for fixing the adjusting spring; the two fork leg bodies are arranged at intervals, and the upper ends of the fork leg bodies are fixedly connected with the lower ends of the shock absorption seats.

According to the technical scheme, the damping effect of the front fork of the bicycle is greatly improved by arranging the damping component, and the lower end of the front fork is installed through the fork leg body; because the damping sleeve of the damping component is abutted against the damping spring, the damping spring elastically supports the damping sleeve and the damping main shaft and absorbs jolt generated on the ground by the elasticity of the damping main shaft in the riding process of the bicycle, so that the bicycle frame is prevented from being broken, and the riding comfort level is improved; according to the technical scheme, the buffer springs are arranged on the inner sides of the damping springs, so that when the bicycle is pressed heavily to cause overlarge displacement of the damping sleeve, the buffer springs can play a certain buffering role, the damping sleeve is prevented from exceeding the maximum damping stroke, and the safety of the damping structure is improved; the user still can adjust length through adjusting screw when using, plays the effect of adjusting the shock attenuation, facilitates the use.

Furthermore, the periphery of the damping main shaft is provided with positioning grooves which are oppositely arranged and are arranged along the axis of the damping main shaft, and the positioning grooves are in sliding fit with positioning bosses which are oppositely arranged on the inner wall of the damping sleeve.

Further, the damping cavity bottom is equipped with the mount table, the damping spring lower extreme cover is established on the mount table, be equipped with on the mount table and supply the hole that passes of shock attenuation main shaft, pass hole and shock attenuation main shaft cross-sectional shape looks adaptation.

Further, the periphery of the lower end of the damping sleeve is provided with a damping abutting part which abuts against the upper end of the damping spring.

Furthermore, the lower end of the shock absorption sleeve is also provided with a dustproof sleeve movably sleeved on the periphery of the shock absorption seat.

Furthermore, adjusting screw periphery is equipped with the regulation butt portion that offsets with the adjusting spring upper end, the adjusting screw upper end is equipped with the regulation hole.

Furthermore, the upper end of the shock absorption sleeve is provided with an anti-drop screw socket, an anti-drop nut is screwed on the anti-drop screw socket, and a disassembly opening is formed in the upper end face of the anti-drop nut.

Further, the buffer spring is arranged opposite to the spiral direction of the damper spring.

Furthermore, the outer side face of the fork leg body is provided with reinforcing ribs protruding outwards, and the reinforcing ribs are arranged along the extending direction of the fork leg body.

Furthermore, the lower end of the fork leg body is provided with an installation bayonet.

The utility model has the advantages that: the utility model provides a damping component which can greatly improve the damping effect of the front fork of the bicycle; because the damping sleeve of the damping component is propped against the damping spring, the damping spring elastically supports the damping sleeve and the damping main shaft, and the damping sleeve and the damping main shaft absorb jolts generated on the ground by the elasticity of the damping sleeve and the damping main shaft in the riding process of the bicycle, so that the bicycle frame is prevented from being broken, and the riding comfort level is improved; the utility model also arranges a buffer spring in the damping cavity, the buffer spring can prevent the displacement of the bicycle from exceeding the damping stroke under heavy pressure, and the safety of the damping structure is improved; has higher practical value and popularization value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is an exploded view of the invisible shock absorbing front fork of the bicycle according to the embodiment of the present invention.

Fig. 2 is an axonometric view of the invisible shock absorbing front fork of the bicycle of the embodiment of the present invention.

Fig. 3 is a sectional view of the shock absorbing assembly of the invisible shock absorbing front fork of the bicycle according to the embodiment of the present invention.

Fig. 4 is an assembly schematic view of the damping main shaft and the damping sleeve of the invisible damping front fork of the utility model discloses a specific embodiment.

Description of the drawings: fork leg body 100, strengthening rib 110, installation bayonet 120, shock-absorbing seat 200, shock attenuation chamber 210, mount table 220 pass hole 221, shock attenuation main shaft 300, adjust section 310, constant head tank 320, shock attenuation cover 400, shock attenuation portion of leaning on 410, location boss 420, damping spring 500, adjusting spring 600, adjusting screw 700, dirt proof boot 800, anticreep nut 900, dismantlement mouth 910, buffer spring 1000.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 to 4, the present embodiment provides a bicycle invisible damping front fork, which includes a damping assembly and a pair of fork leg bodies 100; the damping assembly comprises a damping seat 200, a damping main shaft 300 and a damping sleeve 400, a damping cavity 210 penetrating through the upper end of the damping seat 200 is arranged in the damping cavity 210, a damping spring 500 is arranged in the damping cavity 210, and a buffer spring 1000 with the height lower than that of the damping spring is arranged on the damping cavity 210 corresponding to the inner side of the damping spring 500; the damping sleeve 400 is movably sleeved on the damping main shaft 300, and the lower end of the damping main shaft 300 movably penetrates through the damping cavity 210 and penetrates through the buffer spring 1000 and the damping spring 500, so that the upper end of the damping spring 500 is abutted against the lower end of the damping sleeve 400; the upper end of the damping main shaft 300 is also provided with an adjusting section 310, the adjusting section 310 is sleeved with an adjusting spring 600, and the upper end of the adjusting section 310 is screwed with an adjusting screw 700 for fixing the adjusting spring 600; the two fork leg bodies 100 are arranged at intervals, and the upper ends of the fork leg bodies 100 are fixedly connected with the lower ends of the shock absorbing seats 200.

As shown in fig. 1 to 4, in the present embodiment, the shock absorbing assembly is provided to greatly improve the shock absorbing effect of the front fork of the bicycle, and the front wheel of the bicycle is mounted at the lower end of the front fork through the fork leg body 100; because the damping sleeve 400 of the damping component is abutted against the damping spring 500, the damping spring 500 elastically supports the damping sleeve 400 and the damping spindle 300 during the riding process of the bicycle, and the bumping generated on the ground is absorbed by the elasticity of the damping spring, so that the bicycle frame is prevented from being broken, and the riding comfort level is improved; in this embodiment, a buffer spring 1000 is further disposed on the inner side of the damping spring 500, the height of the buffer spring 1000 is lower than that of the damping spring 500, when the bicycle is stressed to cause the downward movement displacement of the damping sleeve 400 to exceed the damping stroke, the buffer spring 1000 can play a certain supporting and buffering role, so as to prevent the displacement of the damping sleeve 400 from exceeding the damping stroke, and improve the safety of the damping structure, in practical application, the upper end of the buffer spring 1000 corresponds to the limit damping position of the damping sleeve 400, so that when the damping sleeve 400 exceeds the damping stroke, the buffer spring 1000 can intervene in time to achieve buffering; in addition, the damping spring 400 and the buffer spring 1000 are arranged in opposite spiral directions, so that faults of snap springs and the like of the springs are avoided; the user still can adjust the whole length of adjusting the section through adjusting screw 600 when using, plays the effect of adjusting the shock attenuation, facilitates the use.

As shown in fig. 1 to 4, since the shock absorbing main shaft 300 and the shock absorbing sleeve 400 need to be displaced relatively during the running of the bicycle, in order to ensure the stability of the relative movement between the shock absorbing main shaft 300 and the shock absorbing sleeve 400, the present embodiment is provided with positioning grooves 320 arranged oppositely and along the axis of the shock absorbing main shaft 300 at the periphery thereof, and the positioning grooves 320 are in sliding fit with positioning bosses 420 arranged oppositely on the inner wall of the shock absorbing sleeve 400. Therefore, after the damping sleeve 400 is sleeved on the damping spindle 300 in a penetrating manner, the positioning boss 420 is slidingly clamped into the positioning groove 320, so that the damping sleeve 400 and the damping spindle 300 are prevented from rotating relatively, and the damping sleeve 400 and the damping spindle 300 are more stable when being pressed to move linearly.

As described above, the damping spring 500 for absorbing ground jolt in this embodiment is installed in the damping cavity 210, in order to further improve the stability of installation of the damping spring 500, the installation table 220 is arranged at the bottom in the damping cavity 210, the lower end of the damping spring 500 is sleeved on the installation table 220, the lower end of the buffer spring 1000 abuts against the upper end 220 of the installation table, a through hole 221 for the damping spindle 300 to pass through is arranged on the installation table 220, and the through hole 221 is matched with the cross-sectional shape of the damping spindle 300. Like this, damping spring 500 lower extreme can overlap on mount table 220, and damping spindle 300 lower extreme can movably pass mount table 220 to ensure the shock attenuation effect, in addition, damping spring 1000 can offset with the mount table upper end for ensure can play the cushioning effect to damping sleeve 400.

As shown in fig. 1 to 4, since the damper spring 500 is used to elastically support the damper sleeve 400, in order to improve the stability of the support, the damper sleeve 400 of the present embodiment is provided at the outer circumference of the lower end thereof with a damper abutting portion 410 abutting against the upper end of the damper spring 500. In this way, the upper end of the damping spring 500 can abut against the damping abutment 410, thereby stably supporting the damping sleeve 400; in practical application, it should be ensured that the inside of the damping cavity 210 is kept sealed and isolated from the outside, so as to avoid the damping spring 500 and the like from being damaged, and in this embodiment, a dust-proof sleeve 800 movably sleeved on the periphery of the damping seat is further arranged at the lower end of the damping sleeve 400. The dustproof sleeve 800 can prevent the interior of the shock absorption seat from being polluted by the outside, and the use safety is improved.

As mentioned above, the adjusting screw 700 is used to adjust the length of the adjusting section 310, and for the convenience of adjustment, the adjusting screw 700 is provided with an adjusting abutting portion at the periphery thereof for abutting against the upper end of the adjusting spring 600, and the upper end of the adjusting screw 700 is provided with an adjusting hole. Thus, the telescopic length of the adjusting spring 600 can be adjusted through the adjusting hole, thereby facilitating control. The adjusting hole can be an inner hexagonal screw hole, and a user can conveniently adjust the adjusting hole by means of a tool. In addition, in order to facilitate the maintenance of the damping assembly in this embodiment, an anti-disengagement screw is provided at the upper end of the damping sleeve 400, the anti-disengagement screw is screwed with an anti-disengagement nut 900, and a detachment port 910 is provided at the upper end surface of the anti-disengagement nut 900; the anti-separation nut 900 can seal the screw opening at the upper end of the shock-absorbing sleeve 400, and the anti-separation nut 900 is convenient to fix through the disassembly opening 910. The removal port 910 may preferably be an internal hexagonal screw.

As mentioned above, the two-fork leg body 100 is used for mounting a front wheel of a bicycle, and in this embodiment, the outer side surface of the two-fork leg body 100 is provided with the reinforcing rib 110 protruding outwards, and the reinforcing rib 110 is arranged along the extending direction of the two-fork leg body 100. Thus, the arrangement of the reinforcing ribs 110 can obviously improve the structural strength of the fork leg body 100 and improve the outdoor use safety of the fork leg body; in order to facilitate rapid installation of the wheel, an installation bayonet 120 is provided at the lower end of the fork leg body 100. The mounting parts such as the wheel rotating shaft can be quickly mounted on the mounting bayonet 120.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A bicycle invisible shock absorbing front fork is characterized by comprising a shock absorbing assembly and a pair of fork leg bodies (100);

the damping assembly comprises a damping seat (200), a damping main shaft (300) and a damping sleeve (400), a damping cavity (210) penetrating through the upper end of the damping seat (200) is arranged in the damping seat (200), a damping spring (500) is arranged in the damping cavity (210), and a buffer spring (1000) lower than the damping spring (500) is arranged in the damping cavity (210) corresponding to the inner side of the damping spring (500);

the damping sleeve (400) is movably sleeved on the damping main shaft (300), the lower end of the damping main shaft (300) movably penetrates into the damping cavity (210) and penetrates through the buffer spring (1000) and the damping spring (500), and the upper end of the damping spring (500) is abutted to the lower end of the damping sleeve (400); the upper end of the damping main shaft (300) is also provided with an adjusting section (310), an adjusting spring (600) is sleeved on the adjusting section (310), and the upper end of the adjusting section (310) is screwed with an adjusting screw (700) for fixing the adjusting spring (600);

the two fork leg bodies (100) are arranged at intervals, and the upper ends of the fork leg bodies (100) are fixedly connected with the lower ends of the shock absorbing seats (200).

2. The invisible shock absorbing front fork for bicycles as claimed in claim 1, wherein the shock absorbing main shaft (300) is provided with positioning grooves (320) arranged oppositely along the axis thereof at the periphery, and the positioning grooves (320) are in sliding fit with positioning bosses (420) arranged oppositely on the inner wall of the shock absorbing sleeve (400).

3. The invisible damping front fork for bicycles as claimed in claim 1, wherein a mounting table (220) is arranged at the bottom in the damping cavity (210), the lower end of the damping spring (500) is sleeved on the mounting table (220), the lower end of the damping spring abuts against the upper end of the mounting table (220), a through hole (221) for the damping spindle (300) to pass through is formed in the mounting table (220), and the through hole (221) is matched with the cross-sectional shape of the damping spindle (300).

4. The invisible damping front fork for bicycles as claimed in claim 1, wherein the damping sleeve (400) is provided with a damping abutting portion (410) at the periphery of the lower end thereof for abutting against the upper end of the damping spring (500).

5. The invisible shock absorption front fork of the bicycle according to claim 1, wherein a dust-proof sleeve (800) movably sleeved on the periphery of the shock absorption seat is further arranged at the lower end of the shock absorption sleeve (400).

6. The invisible shock absorption front fork of a bicycle according to claim 1, wherein the adjusting screw (700) is provided with an adjusting abutting portion at the periphery thereof, which abuts against the upper end of the adjusting spring (600), and the adjusting screw (700) is provided with an adjusting hole at the upper end thereof.

7. The invisible shock absorption front fork of a bicycle according to claim 1, wherein an anti-drop screw is arranged at the upper end of the shock absorption sleeve (400), an anti-drop nut (900) is screwed on the anti-drop screw, and a disassembly opening (910) is arranged on the upper end face of the anti-drop nut (900).

8. The invisible damping front fork for bicycles as claimed in claim 1, wherein the damping spring (1000) is arranged opposite to the spiral direction of the damping spring (500).

9. The invisible shock-absorbing front fork for bicycles as claimed in claim 1, wherein the outer side surface of the fork leg body (100) is provided with an outwardly protruding rib (110), and the rib (110) is arranged along the extending direction of the fork leg body (100).

10. The invisible shock absorbing front fork for bicycles as claimed in claim 1, wherein the lower end of the fork leg body (100) is provided with a mounting bayonet (120).