CN218141947U

CN218141947U - Shock-absorbing device of bicycle front fork

Info

Publication number: CN218141947U
Application number: CN202123282458.5U
Authority: CN
Inventors: 冯道良; 冯斌昊
Original assignee: Kunshan Zhuomat Metal Products Co ltd
Current assignee: Kunshan Zhuomat Metal Products Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-12-27
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a bicycle front fork technical field just discloses a damping device of bicycle front fork, which comprises a fixing plate and i, the first dead lever of fixed plate bottom left side fixedly connected with, fixed plate bottom right side fixedly connected with second dead lever, fixedly connected with connecting rod in the middle of the fixed plate top, the fixed plate bottom is provided with damper, fixed plate top left side is provided with fixed establishment, damper includes the flexible leg of first flexible leg, second, connecting piece, telescopic link and spring, the flexible leg top telescopic connection of first flexible leg bottom, the flexible leg top telescopic connection of second is in second dead lever bottom, connecting piece fixed connection is between the flexible leg top of first flexible leg top and the flexible leg top of second. This damping device of bicycle front fork owing to there is buffer gear, not only can share damper's pressure, also can protect damper simultaneously, effectively prolongs damper life-span.

Description

Shock-absorbing device of bicycle front fork

Technical Field

The utility model relates to a bicycle front fork technical field specifically is a damping device of bicycle front fork.

Background

The front fork part is in front part of the bicycle structure, its upper end is connected with the handlebar part, the frame part is matched with the front tube, and its lower end is matched with the front shaft part to form the guide system of the bicycle. The steering of the bicycle can be changed by rotating the handlebar and the front fork, and the steering function of the bicycle is achieved. In addition, the bicycle can also play a role in controlling the running of the bicycle. The stress condition of the front fork component is the property of a cantilever beam, so the front fork component has to have the properties of enough strength and the like.

In order to improve the comfort of a rider during riding, a front fork and a rear fork of a common bicycle are additionally provided with a damping mechanism to improve the stability, however, the front fork damping system of the existing bicycle can achieve the damping effect, the overload injury to the damping system is caused when the road condition exceeding the damping coefficient is met, and the service life of the damping system is influenced in the past.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bicycle front fork's damping device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a damping device of bicycle front fork, includes the fixed plate, the first dead lever of fixed plate bottom left side fixedly connected with, fixed plate bottom right side fixedly connected with second dead lever, fixedly connected with connecting rod in the middle of the fixed plate top, the fixed plate bottom is provided with damper, the inside buffer gear that is provided with of connecting rod, fixed plate top left side is provided with fixed establishment, damper includes first flexible leg, the flexible leg of second, connecting piece, telescopic link and spring, first flexible leg top telescopic connection is in first dead lever bottom, the flexible leg top telescopic connection of second is in second dead lever bottom, connecting piece fixed connection is between the flexible leg top of first flexible leg top and second, telescopic link bottom fixed connection is in the middle of the connecting piece top, spring bottom fixed connection is in the middle of the connecting piece top.

Preferably, the buffer mechanism comprises an air cavity, a piston head and a sealing gasket, the air cavity is formed in the bottom of the connecting rod, the piston head is fixedly connected to the top end of the telescopic rod, and the sealing gasket is fixedly connected to the middle of the top of the fixing plate and located on the outer ring of the telescopic rod.

Preferably, the fixing mechanism comprises a bolt head, a nut lock and a gasket, the bottom end of the bolt head is fixedly connected to the top end of the first fixing rod, the nut lock is in threaded connection with the outer ring of the bolt head, and the gasket is sleeved outside the bolt head.

Preferably, the spring is sleeved outside the telescopic rod, and the top end of the spring is fixedly connected to the middle of the bottom of the fixing plate, so that the spring can normally provide damping force.

Preferably, the top end of the telescopic rod penetrates through the fixing plate and extends into the air cavity, and the outer ring of the piston head abuts against the inner wall of the air cavity, so that the expansion and contraction of the telescopic rod can influence the pressure in the air cavity, and a damping effect is provided.

Preferably, the top end of the second fixing rod is also provided with a bolt head, a nut lock and a gasket so as to facilitate the installation and the disassembly of the second fixing rod.

Preferably, the diameter of the bolt head is smaller than the diameter of the first fixing rod and the second fixing rod, so that the first fixing rod and the second fixing rod can clamp the fixing plates when being connected.

Compared with the prior art, the utility model provides a damping device of bicycle front fork possesses following beneficial effect:

1. this damping device of bicycle front fork owing to there is buffer gear, not only can share damper's pressure, also can protect damper simultaneously, avoids damper to transship, effectively prolongs damper life-span.

2. This damping device of bicycle front fork makes two dead lever fixed connection fixed plates of front fork through coupling mechanism to make the dead lever be convenient for more install and dismantle.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is an enlarged schematic view of B in fig. 2.

In the figure: 1. a fixing plate; 2. a first fixing lever; 3. a second fixing bar; 4. a connecting rod; 5. a damping mechanism; 501. a first telescoping leg; 502. a second telescoping leg; 503. a connecting member; 504. a telescopic rod; 505. a spring; 6. a buffer mechanism; 601. an air cavity; 602. a piston head; 603. a gasket; 7. a fixing mechanism; 701. a bolt head; 702. a nut lock; 703. and (7) a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a shock-absorbing device of a bicycle front fork comprises a fixing plate 1, a first fixing rod 2 is fixedly connected to the left side of the bottom of the fixing plate 1, a second fixing rod 3 is fixedly connected to the right side of the bottom of the fixing plate 1, a connecting rod 4 is fixedly connected to the middle of the top of the fixing plate 1, a shock-absorbing mechanism 5 is arranged at the bottom of the fixing plate 1, a buffer mechanism 6 is arranged inside the connecting rod 4, a fixing mechanism 7 is arranged at the left side of the top of the fixing plate 1, the shock-absorbing mechanism 5 comprises a first telescopic leg 501, a second telescopic leg 502, a connecting piece 503, a telescopic rod 504 and a spring 505, the top end of the first telescopic leg 501 is telescopically connected to the bottom end of the first fixing rod 2, the top end of the second telescopic leg 502 is telescopically connected to the bottom end of the second fixing rod 3, the connecting piece 503 is fixedly connected between the top end of the first telescopic leg 501 and the top end of the second telescopic leg 502, the bottom end of the telescopic rod 504 is fixedly connected to the middle of the top of the connecting piece 503, the bottom end is fixedly connected to the middle of the connecting piece 503, the spring 505 is sleeved outside the telescopic rod 504, the top end of the spring 505 is fixedly connected to the middle of the bottom of the fixed plate 1, so that the spring 505 can normally provide a damping force, the buffer mechanism 6 comprises an air cavity 601, a piston head 602 and a sealing pad 603, the air cavity 601 is arranged at the bottom in the connecting rod 4, the top end of the telescopic rod 504 penetrates through the fixed plate 1 and extends into the air cavity 601, the outer ring of the piston head 602 abuts against the inner wall of the air cavity 601, so that the expansion and contraction of the telescopic rod 504 can influence the pressure in the air cavity 601, so that the damping effect is provided, the piston head 602 is fixedly connected to the top end of the telescopic rod 504, the sealing pad 603 is fixedly connected to the middle of the top of the fixed plate 1 at the outer ring of the telescopic rod 504, the fixing mechanism 7 comprises a bolt head 701, a nut lock 702 and a gasket 703, the bottom end of the bolt head 701 is fixedly connected to the top end of the first fixing rod 2, and the diameter of the bolt head 701 is smaller than that of the first fixing rod 2 and the second fixing rod 3, so that first dead lever 2 and second dead lever 3 all can chucking fixed plate 1 during connection, nut lock 702 threaded connection is in bolt head 701 outer lane, gasket 703 cup joints in the bolt head 701 outside, 3 tops of second dead lever also are provided with bolt head 701, nut lock 702 and gasket 703, so that the installation of second dead lever 3 and dismantlement, the damping device of this bicycle front fork, owing to there is buffer gear 6, not only can share the pressure of damper 5, also can protect damper 5 simultaneously, avoid damper 5 to transship, effectively prolong damper 5 life-span, two dead lever fixed connection fixed plates 1 that make the front fork through coupling mechanism 7, thereby make the dead lever be convenient for installation and dismantlement more.

In the actual operation process, when the device is used, vibration is transmitted to the first telescopic leg 501 and the second telescopic leg 502 due to wheel bumping, the first telescopic leg 501 and the second telescopic leg 502 shrink upwards under the action of inertia, the connecting piece 503 rises along with the rising of the first telescopic leg 502 and extrudes the spring 505, the spring 505 shrinks to generate damping force, partial vibration is counteracted under the damping action, meanwhile, the telescopic rod 504 fixedly connected to the middle of the top of the connecting piece 503 shrinks towards the inside of the air cavity 601, and the air cavity 601 keeps sealed, so that the pressure inside the air cavity 601 changes, the changed damping force is generated, and partial vibration is counteracted under the damping action.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A damping device of bicycle front fork, includes fixed plate (1), its characterized in that: a first fixing rod (2) is fixedly connected to the left side of the bottom of the fixing plate (1), a second fixing rod (3) is fixedly connected to the right side of the bottom of the fixing plate (1), a connecting rod (4) is fixedly connected to the middle of the top of the fixing plate (1), a damping mechanism (5) is arranged at the bottom of the fixing plate (1), a buffering mechanism (6) is arranged inside the connecting rod (4), and a fixing mechanism (7) is arranged at the left side of the top of the fixing plate (1);

damper (5) are including first flexible leg (501), the flexible leg of second (502), connecting piece (503), telescopic link (504) and spring (505), first flexible leg (501) top telescopic connection is in first dead lever (2) bottom, the flexible leg of second (502) top telescopic connection is in second dead lever (3) bottom, connecting piece (503) fixed connection is between first flexible leg (501) top and the flexible leg of second (502) top, telescopic link (504) bottom fixed connection is in the middle of connecting piece (503) top, spring (505) bottom fixed connection is in the middle of connecting piece (503) top.

2. The bicycle fork suspension device of claim 1, wherein: the buffer mechanism (6) comprises an air cavity (601), a piston head (602) and a sealing gasket (603), the air cavity (601) is arranged at the inner bottom of the connecting rod (4), the piston head (602) is fixedly connected to the top end of the telescopic rod (504), and the sealing gasket (603) is fixedly connected to the middle of the top of the fixing plate (1) and is arranged on the outer ring of the telescopic rod (504).

3. A bicycle fork suspension device as defined in claim 1, further comprising: the fixing mechanism (7) comprises a bolt head (701), a nut lock (702) and a gasket (703), the bottom end of the bolt head (701) is fixedly connected to the top end of the first fixing rod (2), the nut lock (702) is in threaded connection with the outer ring of the bolt head (701), and the gasket (703) is sleeved on the outer portion of the bolt head (701).

4. The bicycle fork suspension device of claim 1, wherein: the spring (505) is sleeved outside the telescopic rod (504), and the top end of the spring (505) is fixedly connected to the middle of the bottom of the fixing plate (1).

5. The bicycle fork suspension device of claim 2, wherein: the top end of the telescopic rod (504) penetrates through the fixing plate (1) and extends into the air cavity (601), and the outer ring of the piston head (602) abuts against the inner wall of the air cavity (601).

6. A bicycle fork suspension device as defined in claim 3, wherein: the top end of the second fixing rod (3) is also provided with a bolt head (701), a nut lock (702) and a gasket (703).

7. A bicycle fork suspension device as defined in claim 3, wherein: the diameter of the bolt head (701) is smaller than the diameters of the first fixing rod (2) and the second fixing rod (3).