CN203362798U - Connecting rod - Google Patents
Connecting rod Download PDFInfo
- Publication number
- CN203362798U CN203362798U CN 201320410693 CN201320410693U CN203362798U CN 203362798 U CN203362798 U CN 203362798U CN 201320410693 CN201320410693 CN 201320410693 CN 201320410693 U CN201320410693 U CN 201320410693U CN 203362798 U CN203362798 U CN 203362798U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- pin
- hole
- wrist
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a connecting rod which comprises a connecting rod large end, a rod body and a connecting rod small end, wherein the connecting rod large end is connected with the connecting rod small end through the rod body; a transmission shaft mounting hole is formed in the connecting rod large end; a pin hole is formed in the connecting rod small end and is a blind hole; two clamping grooves are symmetrically formed in the bottom end part of the pin hole; and each clamping groove is perpendicular to the pin hole. According to the connecting rod, when the connecting rod and a matched connecting rod pin are assembled, the elastic fasteners of the connecting rod pin are pressed down for loading the connecting rod pin into the bottom end of the pin hole of the connecting rod small end and are clamped into the clamping grooves under the action of elastic restoring forces, and the connecting rod pin and the connecting rod are axially fixed through the elastic fasteners to transmit rotary torque; and when the connecting rod and the connecting rod pin are disassembled, the elastic fasteners are pressed down for pulling out the connecting rod pin. The connecting rod is simple in structure, reasonable in design and convenient to mount and dismount.
Description
Technical field
The utility model relates to a kind of improvement of parts of driving mechanism, particularly a kind of easy-disassembling-assembling bicycle use connecting rod.
Background technique
Connecting rod mechanism movement is various informative, can realize the compound movements such as rotation, swing and movement in plane and space, and therefore, linkage mechanism is widely used in various machinery, instrument and electronic product.Connecting rod be in linkage two ends respectively with dirivig member and hinged motion and the rod member of power of transmitting of driven member.As bicycle is exactly that the power of wood clapper being born by connecting rod is passed to transmission shaft, and then drive the drive chain running, finally realize the front and back running of wheel.The small end of connecting rod is provided with pin-and-hole, by pin, wood clapper is connected on wrist-pin end of connecting rod.The pin of bicycle use and the pin-and-hole on wrist-pin end of connecting rod are all to adopt interference fit at present, the assembling difficulty, high to the fit dimension required precision, and connect to need very large external force owing to taking interference apart, tend to damage the matching surface of part in connecting and cause again utilizing.
The model utility content
The utility model purpose is that a kind of easy-disassembling-assembling bicycle use connecting rod is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of connecting rod, comprise connecting rod tip, and shaft and wrist-pin end of connecting rod, connect by shaft between described connecting rod tip and wrist-pin end of connecting rod; Described connecting rod tip is provided with the transmission shaft mounting hole, and described wrist-pin end of connecting rod is provided with pin-and-hole; The pin-and-hole of described wrist-pin end of connecting rod is blind hole, and described blind-hole bottom section is symmetrically arranged with two draw-in grooves.
Preferably, described each draw-in groove is perpendicular to described pin-and-hole.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
The described connecting rod of the utility model scheme, comprise connecting rod tip, and shaft and wrist-pin end of connecting rod connect by shaft between described connecting rod tip and wrist-pin end of connecting rod; Described connecting rod tip is provided with the transmission shaft mounting hole, and described wrist-pin end of connecting rod is provided with pin-and-hole; The pin-and-hole of described wrist-pin end of connecting rod is blind hole, and described blind-hole bottom section is symmetrically arranged with two draw-in grooves; Described each draw-in groove is perpendicular to described pin-and-hole.When connecting rod of the present invention assembles with the link pin matched, the Elastic buckle of pressing described link pin is packed link pin the pin-and-hole of wrist-pin end of connecting rod into until the pin-and-hole bottom, described Elastic buckle snaps in described draw-in groove under the effect of elastic-restoring force, by Elastic buckle, realizes that axial restraint between link pin and connecting rod is with transmitting torque.During dismounting, pressing Elastic buckle can pull out link pin.Bar linkage structure described in the utility model is simple, reasonable in design, easy accessibility.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
The plan view that accompanying drawing 1 is the described connecting rod of model utility;
The A-A face sectional view that accompanying drawing 2 is connecting rod described in the utility model;
Exploded view when accompanying drawing 3 is connecting rod application state described in the utility model
Wherein: 1, connecting rod tip; 2, shaft; 3, wrist-pin end of connecting rod, 4, the transmission shaft mounting hole; 5, pin-and-hole; 6, draw-in groove; 7, link pin; 8, Elastic buckle; 9, connecting rod.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As accompanying drawing 1,2 is depicted as a kind of bicycle use connecting rod described in the utility model, comprise connecting rod tip 1, shaft 2 and wrist-pin end of connecting rod 3, connect by shaft 2 between described connecting rod tip 1 and wrist-pin end of connecting rod 3; Described connecting rod tip 1 is provided with transmission shaft mounting hole 4, and described wrist-pin end of connecting rod 3 is provided with pin-and-hole 5; The pin-and-hole 5 of described wrist-pin end of connecting rod 3 is blind hole, and described pin-and-hole bottom is symmetrically arranged with two draw-in grooves 6; Described each 6 perpendicular to described pin-and-hole 5.
Exploded view while being connecting rod application state described in the utility model as shown in Figure 3, the end, two ends of described link pin 7 all is symmetrically arranged with Elastic buckle 8, the Elastic buckle 8 of pressing an end is wherein packed link pin 7 pin-and-hole 5 of wrist-pin end of connecting rod 3 into until the pin-and-hole bottom, described Elastic buckle 8 snaps in described draw-in groove 6 under the effect of elastic-restoring force, by Elastic buckle 8, realizes that axial restraint between link pin 7 and connecting rod 9 is with transmitting torque.During dismounting, due to Elastic buckle 8 use at the two end part of link pin 7 be to use same elastic device, the Elastic buckle 8 of pressing link pin 7 the other ends makes the elastic card 8 be embedded in draw-in groove 6 break away from draw-in grooves 6, link pin 7 is pulled outwardly detachable.Bar linkage structure described in the utility model is simple, reasonable in design, easy accessibility.
Be only below concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on the utility model rights protection scope.
Claims (2)
1. a connecting rod, comprise connecting rod tip, and shaft and wrist-pin end of connecting rod connect by shaft between described connecting rod tip and wrist-pin end of connecting rod; Described connecting rod tip is provided with the transmission shaft mounting hole, and described wrist-pin end of connecting rod is provided with pin-and-hole; It is characterized in that: the pin-and-hole of described wrist-pin end of connecting rod is blind hole, and described pin-and-hole bottom is symmetrically arranged with two draw-in grooves.
2. connecting rod according to claim 1, it is characterized in that: described each draw-in groove is perpendicular to described pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320410693 CN203362798U (en) | 2013-07-11 | 2013-07-11 | Connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320410693 CN203362798U (en) | 2013-07-11 | 2013-07-11 | Connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362798U true CN203362798U (en) | 2013-12-25 |
Family
ID=49810570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320410693 Expired - Fee Related CN203362798U (en) | 2013-07-11 | 2013-07-11 | Connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362798U (en) |
-
2013
- 2013-07-11 CN CN 201320410693 patent/CN203362798U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140711 |
|
| EXPY | Termination of patent right or utility model |