US20200378434A1 - Connecting rod structure - Google Patents
Connecting rod structure Download PDFInfo
- Publication number
- US20200378434A1 US20200378434A1 US16/826,954 US202016826954A US2020378434A1 US 20200378434 A1 US20200378434 A1 US 20200378434A1 US 202016826954 A US202016826954 A US 202016826954A US 2020378434 A1 US2020378434 A1 US 2020378434A1
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- Prior art keywords
- rod
- limiting
- positioning
- limiting portion
- hole
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- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/06—Adjustable connecting-rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/03—Shafts; Axles telescopic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/023—Shafts; Axles made of several parts, e.g. by welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/076—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/80—Positive connections with splines, serrations or similar profiles to prevent movement between joined parts
Definitions
- the present disclosure relates to a connecting rod structure and, in particular, to a connecting rod structure with adjustable length.
- a connecting rod structure is usually found in a steering device, a positioning device, an automated device, a transmission device or other mechanized devices.
- the connecting rod structure is mostly composed of a plurality of rods, and a length of each rod is fixed. If the length of the connecting rod structure is to be changed, some rods need to be replaced. This process is time-consuming and easily results in an assembly error.
- a telescopic rod group is proposed, a telescopic mechanism and a locking mechanism of the existing telescopic rod group are not perfect. Consequently, when two rods of the telescopic rod group slide relative to each other, the two rods may be skewed. Alternatively, after the two rods are locked together, there is still a margin of relative sliding between the two rods.
- the present disclosure provides a connecting rod structure whose length is adjustable and having good reliability.
- the connecting rod structure in the present disclosure includes a first rod, a second rod and a locking element.
- the first rod includes a first rod portion, a first limiting portion and a second limiting portion.
- the first limiting portion and the second limiting portion extend from a side of the first rod portion.
- the first limiting portion and the second limiting portion are spaced apart.
- the first limiting portion has a first through hole
- the second limiting portion has a second through hole aligned with the first through hole.
- the second rod includes a second rod portion and a positioning portion connected to the second rod portion.
- the positioning portion has a through groove, and the positioning portion is located between the first limiting portion and the second limiting portion, the through groove is located between the first through hole and the second through hole.
- An inner diameter of the through groove is greater than an inner diameter of the first through hole and an inner diameter of the second through hole.
- the locking element passes through the first through hole, the through groove and the second through hole, to lock the first rod and the
- the first rod and the second rod may slide relative to each other, to adjust the length of the connecting rod structure.
- an operator may lock the first rod and the second rod together using the locking element, to prevent the first rod and the second rod from sliding relative to each other. Therefore, the connecting rod structure in the present disclosure has good reliability.
- FIG. 1 is a schematic diagram of a connecting rod structure according to an embodiment of the present disclosure.
- FIG. 2 is a schematic dismantling diagram of a connecting rod structure according to an embodiment of the present disclosure.
- FIG. 3 and FIG. 4 are schematic partial cross-sectional views of a connecting rod structure taken in two different directions according to an embodiment of the present disclosure.
- FIG. 5 is a schematic diagram of a connecting rod structure applied to a steering device of a vehicle according to an embodiment of the present disclosure.
- FIG. 1 is a schematic diagram of a connecting rod structure according to an embodiment of the present disclosure.
- FIG. 2 is a schematic dismantling diagram of a connecting rod structure according to an embodiment of the present disclosure.
- a connecting rod structure 100 includes a first rod 110 , a second rod 120 and a locking element 130 .
- the first rod 110 is slidably connected to the second rod 120 , and the first rod 110 and the second rod 120 may slide relative to each other along a first axial direction A 1 .
- an operator may lock the first rod 110 and the second rod 120 together using the locking element 130 , to limit a degree of freedom of movement of the first rod member 110 and the second rod member 120 along the first axial direction A 1 .
- the first rod 110 and the second rod 120 cannot slide along the first axial direction A 1 , and the first rod 110 and the second rod 120 can slide again along the first axial direction A 1 until a locking relationship, implemented by the locking element 130 , between the first rod 110 and the second rod 120 is relieved.
- the first rod 110 is partially overlapped or in partial contact with the second rod 120 .
- the first rod 110 includes a first rod portion 111 , a first limiting portion 112 and a second limiting portion 113 .
- the first limiting portion 112 and the second limiting portion 113 extend from a side of the first rod portion 111 , and the first limiting portion 112 and the second limiting portion 113 are spaced apart.
- a direction in which the first limiting portion 112 and the second limiting portion 113 extend is substantially parallel to the first axial direction A 1 .
- first limiting portion 112 and the second limiting portion 113 are disposed in parallel, and a spacing is kept between the first limiting portion 112 and the second limiting portion 113 to accommodate a part of the second rod 120 .
- the second rod 120 includes a second rod portion 121 and a positioning portion 122 connected to the second rod portion 121 , and the spacing between the first limiting portion 112 and the second limiting portion 113 may be used for accommodate the positioning portion 122 .
- the positioning portion 122 is located between the first limiting portion 112 and the second limiting portion 113 , and in the second axial A 2 , a location of the first limiting portion 112 , a location of the positioning portion 122 and a location of the second limiting portion 113 are overlapped.
- the first rod portion 111 and the second rod portion 121 are respectively located on two opposite sides of the first limiting portion 112 , the second limiting portion 113 and the positioning portion 122 .
- the first rod 110 and the second rod 120 slide relative to each other along the first axial direction A 1 , because a location of the positioning portion 122 of the second rod 120 is limited between the first limiting portion 112 and the second limiting portion 113 of the first rod 110 , the first rod 110 and the second rod 120 does not slide relative to each other along the second axial direction A 2 , to ensure that the connecting rod structure 100 is not skewed.
- an end 1111 of the first rod portion 111 of the first rod 110 and an end 1211 of the second rod portion 121 of the second rod 120 are located at two opposite ends of the connecting rod structure 100 .
- the end 1111 of the first rod portion 111 and the end 1211 of the second rod portion 121 may be ball-shaped bases respectively used for receiving a ball socket joint 11 and a ball socket joint 12 . Patterns of applications or structures of the end 1111 of the first rod portion 111 and the end 1211 of the second rod portion 121 are not limited in the present disclosure.
- FIG. 3 and FIG. 4 are schematic partial cross-sectional views of a connecting rod structure taken in two different directions according to an embodiment of the present disclosure.
- the first limiting portion 112 has a first through hole 112 a
- the second limiting portion 113 has a second through hole 113 a .
- the first through hole 112 a is aligned with the second through hole 113 a .
- the positioning portion 122 has a through groove 122 a .
- the through groove 122 a is located between the first through hole 112 a and the second through hole 113 a .
- the first through hole 112 a and the second through hole 113 a are overlapped at the through groove 122 a .
- the positioning portion 122 slides relative to the first limiting portion 112 and the second limiting portion 113 , and accordingly, relative locations of the first through hole 112 a , the second through hole 113 a and the through groove 122 a are moved.
- an inner diameter of the through groove 122 a is greater than an inner diameter of the first through hole 112 a and an inner diameter of the second through hole 113 a .
- the inner diameter of the through groove 122 a is greater than the inner diameter of the first through hole 112 a and the inner diameter of the second through hole 113 a , and when the locking element 130 passes through the first through hole 112 a , the through groove 122 a and the second through hole 113 a but does not lock the first rod 110 and the second rod 120 together, the locking element 130 may slide in the through groove 122 a along the first axial direction A 1 .
- That the locking element 130 does not lock the first rod 110 and the second rod 120 together means that the locking element 130 is not tightened, and that the first limiting portion 112 and the second limiting portion 113 are not tightened on or pressed against two opposite sides of the positioning portion 122 .
- the first limiting portion 112 and the second limiting portion 113 are driven by the locking element 130 to be tightened on or pressed against the two opposite sides of the positioning portion 122 .
- the first rod 110 and the second rod 120 cannot slide along the first axial direction A 1 .
- the locking element 130 may be a screw
- the second through hole 113 a may be a screw hole.
- a depth by which the locking element 130 penetrates into the second through hole 113 a is deepened, and the locking element 130 exerts a force on the first limiting portion 112 and the second limiting portion 113 , so that the first limiting portion 112 and the second limiting portion 113 are tightened on or pressed against the two opposite sides of the positioning portion 122 . Therefore, after adjusting the connecting rod structure 100 to a preset length, an operator may lock the first rod 110 and the second rod 120 together by using the locking element 130 , to prevent the first rod 110 and the second rod 120 from sliding relative to each other. Therefore, the connecting rod structure 100 has good reliability.
- the first rod 110 further includes a first limiting convex portion 114 protruding from the first limiting portion 112 .
- the first limiting convex portion 114 extends toward the second limiting portion 113 , and the first through hole 112 a penetrates through the first limiting convex portion 114 .
- the second limiting portion 113 also has a same or similar structure design with the first limiting portion 112 .
- the first rod 110 further includes a second limiting convex portion 115 protruding from the second limiting portion 113 .
- the second limiting convex portion 115 extends toward the first limiting portion 112 , and the second through hole 113 a penetrates through the second limiting convex portion 115 .
- a location of the first limiting convex portion 114 and a location of the second limiting convex portion 115 are overlapped.
- the first limiting convex portion 114 and the second limiting convex portion 115 are located between the first limiting portion 112 and the second limiting portion 113 , and the first limiting convex portion 114 and the second limiting convex portion 115 are spaced apart, to accommodate the positioning portion 122 of the second rod 120 .
- the positioning portion 122 has a first positioning recess 122 b facing the first limiting portion 112 and a second positioning recess 122 c facing the second limiting portion 113 .
- Two opposite ends of the through groove 122 a are respectively located in the first positioning recess 122 b and the second positioning recess 122 c .
- a direction in which the first positioning recess 122 b and the second positioning recess 122 c extend is substantially parallel to the first axial direction A 1 .
- the first limiting convex portion 114 is disposed in the first positioning recess 122 b in a sliding way
- the second limiting convex portion 115 is disposed in the second positioning recess 122 c in a sliding way.
- an external outline of the first limiting convex portion 114 fits an internal outline of the first positioning recess 122 b
- an external outline of the second limiting convex portion 115 fits an internal outline of the second positioning recess 122 c . Therefore, when the first rod 110 and the second rod 120 slide relative to each other along the first axial direction A 1 , the first rod 110 and the second rod 120 does not slide relative to each other along a third axial direction A 3 (being perpendicular to the first axial direction A 1 and the second axial direction A 2 ), to ensure that the connecting rod structure 100 is not skewed.
- the first limiting convex portion 114 has a first limiting serration 114 a on a side facing the second limiting convex portion 115
- the second limiting convex portion 115 has a second limiting serration 115 a on a side facing the first limiting convex portion 114
- the positioning portion 122 further has a first positioning serration 122 d located in the first positioning recess 122 b and a second positioning serration 122 e located in the second positioning recess 122 c , and the two opposite ends of the through groove 122 a respectively penetrate through the first positioning serration 122 d and the second positioning serration 122 e .
- the first limiting convex portion 114 is in contact with the first positioning serration 122 d through the first limiting serration 114 a
- the second limiting convex portion 115 is in contact with the second positioning serration 122 e through the second limiting serration 115 a . Due to the structural interference between the first limiting serration 114 a and the first positioning serration 122 d , and the structural interference between the second limiting serration 115 a and the second positioning serration 122 e , the first rod 110 and the second rod 120 do not slide easily relative to each other after being locked together by the locking element 130 .
- FIG. 5 is a schematic diagram of a connecting rod structure applied to a steering device of a vehicle according to an embodiment of the present disclosure.
- the connecting rod structure 100 may be applied to a steering device, a positioning device, an automated device, a transmission device or other mechanized devices.
- a first wheel 1 a and a second wheel 1 b are symmetrically disposed on two opposite sides of a chassis 1 c of the vehicle 1
- a steering rod 101 and the connecting rod structure 100 are also symmetrically disposed on the chassis 1 c of the vehicle 1 .
- a length of the steering rod 101 is fixed, and the steering rod 101 may be configured to drive the first wheel 1 a to turn.
- the length of the connecting rod structure 100 is adjustable, and the connecting rod structure 100 may be configured to drive the second wheel 1 b to turn.
- the steering rod 101 and the connecting rod structure 100 may have different lengths. Because the length of the steering rod 101 is fixed, the operator may fix the first wheel 1 a and the steering rod 101 by using a positioning fixture 2 , and then adjust the length of the connecting rod structure 100 , so that the connecting rod structure 100 and the steering rod 101 have a same length, so as to prevent the first wheel 1 a or the second wheel 1 b from being skewed. For the operator, the connecting rod structure 100 is operated simply and directly, so that not only working time spent on maintenance, adjustment or dismantling and assembly is greatly reduced, but also installation errors are reduced.
- the first rod and the second rod may slide relative to each other, to adjust the length of the connecting rod structure.
- an operator may lock the first rod and the second rod together using the locking element, to prevent the first rod and the second rod from sliding relative to each other. Therefore, the connecting rod structure in the present disclosure has good reliability.
- the location of the positioning portion of the second rod is limited between the first limiting portion and the second limiting portion that are of the first rod, the first limiting convex portion of the first rod is located in the first positioning recess of the positioning portion, and the second limiting convex portion of the first rod is located in the second positioning recess of the positioning portion. Therefore, when the first rod and the second rod slide relative to each other along the first axial direction, the first rod and the second rod does not slide relative to each other along the second axial direction and the third axial direction, to ensure that the connecting rod structure is not skewed.
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- General Engineering & Computer Science (AREA)
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Abstract
Description
- This application claims the priority benefit of Taiwan application serial no. 108206767, filed on May 29, 2019. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
- The present disclosure relates to a connecting rod structure and, in particular, to a connecting rod structure with adjustable length.
- A connecting rod structure is usually found in a steering device, a positioning device, an automated device, a transmission device or other mechanized devices. The connecting rod structure is mostly composed of a plurality of rods, and a length of each rod is fixed. If the length of the connecting rod structure is to be changed, some rods need to be replaced. This process is time-consuming and easily results in an assembly error. Although a telescopic rod group is proposed, a telescopic mechanism and a locking mechanism of the existing telescopic rod group are not perfect. Consequently, when two rods of the telescopic rod group slide relative to each other, the two rods may be skewed. Alternatively, after the two rods are locked together, there is still a margin of relative sliding between the two rods.
- The present disclosure provides a connecting rod structure whose length is adjustable and having good reliability.
- The connecting rod structure in the present disclosure includes a first rod, a second rod and a locking element. The first rod includes a first rod portion, a first limiting portion and a second limiting portion. The first limiting portion and the second limiting portion extend from a side of the first rod portion. The first limiting portion and the second limiting portion are spaced apart. The first limiting portion has a first through hole, and the second limiting portion has a second through hole aligned with the first through hole. The second rod includes a second rod portion and a positioning portion connected to the second rod portion. The positioning portion has a through groove, and the positioning portion is located between the first limiting portion and the second limiting portion, the through groove is located between the first through hole and the second through hole. An inner diameter of the through groove is greater than an inner diameter of the first through hole and an inner diameter of the second through hole. The locking element passes through the first through hole, the through groove and the second through hole, to lock the first rod and the second rod together.
- Based on the foregoing, in the connecting rod structure in the present disclosure, the first rod and the second rod may slide relative to each other, to adjust the length of the connecting rod structure. After adjusting the connecting rod structure to a preset length, an operator may lock the first rod and the second rod together using the locking element, to prevent the first rod and the second rod from sliding relative to each other. Therefore, the connecting rod structure in the present disclosure has good reliability.
- To make the features and advantages of the present disclosure clear and easy to understand, the following gives a detailed description of embodiments with reference to accompanying drawings.
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FIG. 1 is a schematic diagram of a connecting rod structure according to an embodiment of the present disclosure. -
FIG. 2 is a schematic dismantling diagram of a connecting rod structure according to an embodiment of the present disclosure. -
FIG. 3 andFIG. 4 are schematic partial cross-sectional views of a connecting rod structure taken in two different directions according to an embodiment of the present disclosure. -
FIG. 5 is a schematic diagram of a connecting rod structure applied to a steering device of a vehicle according to an embodiment of the present disclosure. -
FIG. 1 is a schematic diagram of a connecting rod structure according to an embodiment of the present disclosure.FIG. 2 is a schematic dismantling diagram of a connecting rod structure according to an embodiment of the present disclosure. Referring toFIG. 1 andFIG. 2 , in this embodiment, a connectingrod structure 100 includes afirst rod 110, asecond rod 120 and alocking element 130. Thefirst rod 110 is slidably connected to thesecond rod 120, and thefirst rod 110 and thesecond rod 120 may slide relative to each other along a first axial direction A1. After adjusting the connectingrod structure 100 to a preset length through sliding by thefirst rod 110 and thesecond rod 120 relative to each other, an operator may lock thefirst rod 110 and thesecond rod 120 together using thelocking element 130, to limit a degree of freedom of movement of thefirst rod member 110 and thesecond rod member 120 along the first axial direction A1. In other words, after thefirst rod 110 and thesecond rod 120 are locked together using thelocking element 130, thefirst rod 110 and thesecond rod 120 cannot slide along the first axial direction A1, and thefirst rod 110 and thesecond rod 120 can slide again along the first axial direction A1 until a locking relationship, implemented by thelocking element 130, between thefirst rod 110 and thesecond rod 120 is relieved. - In particular, the
first rod 110 is partially overlapped or in partial contact with thesecond rod 120. Thefirst rod 110 includes afirst rod portion 111, a first limitingportion 112 and a secondlimiting portion 113. The first limitingportion 112 and the second limitingportion 113 extend from a side of thefirst rod portion 111, and the first limitingportion 112 and the second limitingportion 113 are spaced apart. A direction in which the first limitingportion 112 and the second limitingportion 113 extend is substantially parallel to the first axial direction A1. In a second axial direction A2 (being perpendicular to the first axial direction A1), the first limitingportion 112 and the second limitingportion 113 are disposed in parallel, and a spacing is kept between the first limitingportion 112 and the second limitingportion 113 to accommodate a part of thesecond rod 120. - The
second rod 120 includes asecond rod portion 121 and apositioning portion 122 connected to thesecond rod portion 121, and the spacing between the first limitingportion 112 and the second limitingportion 113 may be used for accommodate thepositioning portion 122. In other words, thepositioning portion 122 is located between the first limitingportion 112 and the second limitingportion 113, and in the second axial A2, a location of the first limitingportion 112, a location of thepositioning portion 122 and a location of the second limitingportion 113 are overlapped. In addition, in the first axial direction A1, thefirst rod portion 111 and thesecond rod portion 121 are respectively located on two opposite sides of the first limitingportion 112, the second limitingportion 113 and thepositioning portion 122. When thefirst rod 110 and thesecond rod 120 slide relative to each other along the first axial direction A1, because a location of thepositioning portion 122 of thesecond rod 120 is limited between the firstlimiting portion 112 and the secondlimiting portion 113 of thefirst rod 110, thefirst rod 110 and thesecond rod 120 does not slide relative to each other along the second axial direction A2, to ensure that theconnecting rod structure 100 is not skewed. - It should be specially noted that an
end 1111 of thefirst rod portion 111 of thefirst rod 110 and anend 1211 of thesecond rod portion 121 of thesecond rod 120 are located at two opposite ends of theconnecting rod structure 100. Theend 1111 of thefirst rod portion 111 and theend 1211 of thesecond rod portion 121 may be ball-shaped bases respectively used for receiving aball socket joint 11 and aball socket joint 12. Patterns of applications or structures of theend 1111 of thefirst rod portion 111 and theend 1211 of thesecond rod portion 121 are not limited in the present disclosure. -
FIG. 3 andFIG. 4 are schematic partial cross-sectional views of a connecting rod structure taken in two different directions according to an embodiment of the present disclosure. Referring toFIG. 1 toFIG. 4 , the first limitingportion 112 has a first throughhole 112 a, and the second limitingportion 113 has a second throughhole 113 a. In the second axial direction A2, the first throughhole 112 a is aligned with the second throughhole 113 a. Thepositioning portion 122 has a throughgroove 122 a. The throughgroove 122 a is located between the first throughhole 112 a and the second throughhole 113 a. In the second axial direction A2, the first throughhole 112 a and the second throughhole 113 a are overlapped at thethrough groove 122 a. When thefirst rod 110 and thesecond rod 120 slide relative to each other along the first axial direction A1, thepositioning portion 122 slides relative to the firstlimiting portion 112 and the secondlimiting portion 113, and accordingly, relative locations of the first throughhole 112 a, the second throughhole 113 a and the throughgroove 122 a are moved. - In this embodiment, an inner diameter of the
through groove 122 a is greater than an inner diameter of the first throughhole 112 a and an inner diameter of the second throughhole 113 a. In particular, in the first axial direction A1, the inner diameter of thethrough groove 122 a is greater than the inner diameter of the first throughhole 112 a and the inner diameter of the second throughhole 113 a, and when thelocking element 130 passes through the first throughhole 112 a, the throughgroove 122 a and the second throughhole 113 a but does not lock thefirst rod 110 and thesecond rod 120 together, thelocking element 130 may slide in the throughgroove 122 a along the first axial direction A1. That thelocking element 130 does not lock thefirst rod 110 and thesecond rod 120 together means that thelocking element 130 is not tightened, and that the first limitingportion 112 and the second limitingportion 113 are not tightened on or pressed against two opposite sides of thepositioning portion 122. Once thelocking element 130 is tightened, the first limitingportion 112 and the second limitingportion 113 are driven by thelocking element 130 to be tightened on or pressed against the two opposite sides of thepositioning portion 122. In this case, thefirst rod 110 and thesecond rod 120 cannot slide along the first axial direction A1. - For example, the locking
element 130 may be a screw, and the second throughhole 113 a may be a screw hole. During a process of tightening thelocking element 130, a depth by which thelocking element 130 penetrates into the second throughhole 113 a is deepened, and thelocking element 130 exerts a force on the first limitingportion 112 and the second limitingportion 113, so that the first limitingportion 112 and the second limitingportion 113 are tightened on or pressed against the two opposite sides of thepositioning portion 122. Therefore, after adjusting the connectingrod structure 100 to a preset length, an operator may lock thefirst rod 110 and thesecond rod 120 together by using thelocking element 130, to prevent thefirst rod 110 and thesecond rod 120 from sliding relative to each other. Therefore, the connectingrod structure 100 has good reliability. - Referring to
FIG. 1 to FIG.4, in this embodiment, thefirst rod 110 further includes a first limitingconvex portion 114 protruding from the first limitingportion 112. The first limitingconvex portion 114 extends toward the second limitingportion 113, and the first throughhole 112 a penetrates through the first limitingconvex portion 114. Accordingly, the second limitingportion 113 also has a same or similar structure design with the first limitingportion 112. Thefirst rod 110 further includes a second limitingconvex portion 115 protruding from the second limitingportion 113. The second limitingconvex portion 115 extends toward the first limitingportion 112, and the second throughhole 113 a penetrates through the second limitingconvex portion 115. In the second axial direction A2, a location of the first limitingconvex portion 114 and a location of the second limitingconvex portion 115 are overlapped. The first limitingconvex portion 114 and the second limitingconvex portion 115 are located between the first limitingportion 112 and the second limitingportion 113, and the first limitingconvex portion 114 and the second limitingconvex portion 115 are spaced apart, to accommodate thepositioning portion 122 of thesecond rod 120. - In addition, the
positioning portion 122 has afirst positioning recess 122 b facing the first limitingportion 112 and asecond positioning recess 122 c facing the second limitingportion 113. Two opposite ends of the throughgroove 122 a are respectively located in thefirst positioning recess 122 b and thesecond positioning recess 122 c. In particular, a direction in which thefirst positioning recess 122 b and thesecond positioning recess 122 c extend is substantially parallel to the first axial direction A1. The first limitingconvex portion 114 is disposed in thefirst positioning recess 122 b in a sliding way, and the second limitingconvex portion 115 is disposed in thesecond positioning recess 122 c in a sliding way. For example, an external outline of the first limitingconvex portion 114 fits an internal outline of thefirst positioning recess 122 b, and an external outline of the second limitingconvex portion 115 fits an internal outline of thesecond positioning recess 122 c. Therefore, when thefirst rod 110 and thesecond rod 120 slide relative to each other along the first axial direction A1, thefirst rod 110 and thesecond rod 120 does not slide relative to each other along a third axial direction A3 (being perpendicular to the first axial direction A1 and the second axial direction A2), to ensure that the connectingrod structure 100 is not skewed. - In this embodiment, the first limiting
convex portion 114 has a first limitingserration 114 a on a side facing the second limitingconvex portion 115, and the second limitingconvex portion 115 has a second limitingserration 115 a on a side facing the first limitingconvex portion 114. In addition, thepositioning portion 122 further has afirst positioning serration 122 d located in thefirst positioning recess 122 b and asecond positioning serration 122 e located in thesecond positioning recess 122 c, and the two opposite ends of the throughgroove 122 a respectively penetrate through thefirst positioning serration 122 d and thesecond positioning serration 122 e. In particular, the first limitingconvex portion 114 is in contact with thefirst positioning serration 122 d through the first limitingserration 114 a, and the second limitingconvex portion 115 is in contact with thesecond positioning serration 122 e through the second limitingserration 115 a. Due to the structural interference between the first limitingserration 114 a and thefirst positioning serration 122 d, and the structural interference between the second limitingserration 115 a and thesecond positioning serration 122 e, thefirst rod 110 and thesecond rod 120 do not slide easily relative to each other after being locked together by the lockingelement 130. -
FIG. 5 is a schematic diagram of a connecting rod structure applied to a steering device of a vehicle according to an embodiment of the present disclosure. Referring toFIG. 1 ,FIG. 2 andFIG. 5 , the connectingrod structure 100 may be applied to a steering device, a positioning device, an automated device, a transmission device or other mechanized devices. Herein, an example in which the connectingrod structure 100 is applied to asteering device 10 of a vehicle 1 is illustrated. Further, afirst wheel 1 a and asecond wheel 1 b are symmetrically disposed on two opposite sides of achassis 1 c of the vehicle 1, and asteering rod 101 and the connectingrod structure 100 are also symmetrically disposed on thechassis 1 c of the vehicle 1. A length of thesteering rod 101 is fixed, and thesteering rod 101 may be configured to drive thefirst wheel 1 a to turn. The length of the connectingrod structure 100 is adjustable, and the connectingrod structure 100 may be configured to drive thesecond wheel 1 b to turn. - During maintenance, adjustment or dismantling and assembly of the
steering device 10, thesteering rod 101 and the connectingrod structure 100 may have different lengths. Because the length of thesteering rod 101 is fixed, the operator may fix thefirst wheel 1 a and thesteering rod 101 by using apositioning fixture 2, and then adjust the length of the connectingrod structure 100, so that the connectingrod structure 100 and thesteering rod 101 have a same length, so as to prevent thefirst wheel 1 a or thesecond wheel 1 b from being skewed. For the operator, the connectingrod structure 100 is operated simply and directly, so that not only working time spent on maintenance, adjustment or dismantling and assembly is greatly reduced, but also installation errors are reduced. - In conclusion, in the connecting rod structure in the present disclosure, the first rod and the second rod may slide relative to each other, to adjust the length of the connecting rod structure. After adjusting the connecting rod structure to a preset length, an operator may lock the first rod and the second rod together using the locking element, to prevent the first rod and the second rod from sliding relative to each other. Therefore, the connecting rod structure in the present disclosure has good reliability. In addition, the location of the positioning portion of the second rod is limited between the first limiting portion and the second limiting portion that are of the first rod, the first limiting convex portion of the first rod is located in the first positioning recess of the positioning portion, and the second limiting convex portion of the first rod is located in the second positioning recess of the positioning portion. Therefore, when the first rod and the second rod slide relative to each other along the first axial direction, the first rod and the second rod does not slide relative to each other along the second axial direction and the third axial direction, to ensure that the connecting rod structure is not skewed.
- Although the present disclosure is described with reference to the above embodiments, the embodiments are not intended to limit the present disclosure. A person of ordinary skill in the art may make variations and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.
Claims (10)
Applications Claiming Priority (3)
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TW108206767U | 2019-05-29 | ||
TW108206767U TWM586326U (en) | 2019-05-29 | 2019-05-29 | Linkage |
TW108206767 | 2019-05-29 |
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US10851830B1 US10851830B1 (en) | 2020-12-01 |
US20200378434A1 true US20200378434A1 (en) | 2020-12-03 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/826,954 Active US10851830B1 (en) | 2019-05-29 | 2020-03-23 | Connecting rod structure |
Country Status (6)
Country | Link |
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US (1) | US10851830B1 (en) |
EP (1) | EP3744991A1 (en) |
JP (1) | JP3226581U (en) |
KR (1) | KR200494624Y1 (en) |
CN (1) | CN212155425U (en) |
TW (1) | TWM586326U (en) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2837934A (en) * | 1953-06-19 | 1958-06-10 | Gen Motors Corp | Adjustable linkage |
US3318099A (en) * | 1964-07-06 | 1967-05-09 | Robbins & Assoc James S | Adjustable tunnel sets |
US3617078A (en) * | 1969-10-07 | 1971-11-02 | Ford Motor Co | Adjustable tie rod linkage |
US3745853A (en) * | 1972-03-22 | 1973-07-17 | Trico Products Corp | Adjustable connecting arm |
US3782221A (en) * | 1972-12-05 | 1974-01-01 | Ford Motor Co | Adjustable tie rod link |
IT8553204V0 (en) | 1985-04-03 | 1985-04-03 | Piemontese Radiatori | COMMAND ROD OF ADJUSTABLE LENGTH PARTICULARLY FOR THE OPERATION OF DOORS IN AIR CONDITIONING SYSTEMS FOR VEHICLES |
FR2651285B1 (en) * | 1989-08-28 | 1991-11-29 | Aerospatiale | ADJUSTABLE MECHANICAL CONNECTING ROD. |
FR2705744A1 (en) * | 1993-05-28 | 1994-12-02 | Peugeot | Device for adjustably fastening a rod to a member |
ES2128233B1 (en) * | 1996-03-15 | 2000-02-01 | Fico Cables Sa | SELF-ADJUSTING DEVICE FOR CONTROL CABLE TERMINALS. |
JP4322334B2 (en) * | 1998-12-04 | 2009-08-26 | Thk株式会社 | Connecting rod with ball joint that can be adjusted between centers |
US6612594B2 (en) * | 2001-03-26 | 2003-09-02 | Visteon Global Technologies, Inc. | Connector rod |
US7472627B2 (en) * | 2004-10-19 | 2009-01-06 | Generals Motors Corporation | Automatic transmission mid adjust linkage |
US8770602B1 (en) * | 2011-05-10 | 2014-07-08 | Trw Automotive U.S. Llc | Steering linkage and method for producing same |
WO2014130272A1 (en) * | 2013-02-20 | 2014-08-28 | Illinois Tool Works Inc. | Adjustable linking arm assembly |
CN105434025A (en) | 2015-11-27 | 2016-03-30 | 周建明 | Transverse connecting device for internal fixation of spine |
TWI653126B (en) | 2018-05-08 | 2019-03-11 | 鑫爵實業股份有限公司 | Torque wrench |
-
2019
- 2019-05-29 TW TW108206767U patent/TWM586326U/en unknown
-
2020
- 2020-03-18 CN CN202020341239.6U patent/CN212155425U/en active Active
- 2020-03-23 US US16/826,954 patent/US10851830B1/en active Active
- 2020-03-24 EP EP20165130.4A patent/EP3744991A1/en not_active Withdrawn
- 2020-03-26 KR KR2020200001049U patent/KR200494624Y1/en active IP Right Grant
- 2020-04-02 JP JP2020001193U patent/JP3226581U/en active Active
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JP3226581U (en) | 2020-07-09 |
CN212155425U (en) | 2020-12-15 |
KR200494624Y1 (en) | 2021-11-17 |
TWM586326U (en) | 2019-11-11 |
KR20200002685U (en) | 2020-12-10 |
US10851830B1 (en) | 2020-12-01 |
EP3744991A1 (en) | 2020-12-02 |
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