CN115463383B - But pedal subassembly of quick installation - Google Patents
But pedal subassembly of quick installation Download PDFInfo
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- CN115463383B CN115463383B CN202211230193.0A CN202211230193A CN115463383B CN 115463383 B CN115463383 B CN 115463383B CN 202211230193 A CN202211230193 A CN 202211230193A CN 115463383 B CN115463383 B CN 115463383B
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- connecting hole
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- 238000009434 installation Methods 0.000 title claims description 5
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000006978 adaptation Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000003780 insertion Methods 0.000 description 11
- 230000037431 insertion Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
- B62M3/08—Pedals
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Mechanical Control Devices (AREA)
Abstract
The application relates to a pedal assembly capable of being quickly installed, which comprises: the crank is provided with a crank connecting hole at one end, a pedal is provided with a pedal jack, the fixed shaft is of a hollow structure and penetrates through the pedal jack, the fixed shaft comprises a fixed shaft body and an expanding part connected with the fixed shaft body, and the expanding part penetrates through the crank connecting hole; the tensioning shaft is arranged in the hollow structure of the fixed shaft in a penetrating mode, the connecting end of the tensioning shaft is provided with an extrusion part with the inner cross section gradually increasing from the outside, the extrusion part is adapted to the expansion part, the locking end of the tensioning shaft and the locking end of the fixed shaft are provided with locking structures, and the locking structures are used for changing the relative positions between the tensioning shaft and the fixed shaft, so that the extrusion part extrudes the expansion part to deform and clamp the expansion part in the crank connecting hole. The pedal assembly capable of being quickly installed is not easy to damage, the maintenance operation difficulty is small, the maintenance cost is low, and the pedal assembly can be operated by a common user.
Description
Technical Field
The application relates to the technical field of pedal connection structures, in particular to a pedal assembly capable of being quickly installed.
Background
Currently, the cranks of bicycles, spinning and exercise bicycles on the market are integrated into a whole, one end of the crank is connected with a middle shaft, the other end of the crank is connected with pedals, and the two ends of the crank are connected in a threaded manner.
As disclosed in patent document 201420127426.9, a sleeve and a shaft core are arranged in the pedal, the shaft core is in threaded connection with the crank, and the pedal is in threaded connection with the crank.
For body-building equipment such as bicycles or spinning and body-building vehicles, in order to facilitate packaging and transportation, a part of a crank and a pedal needs to be automatically installed after a user receives goods. The existing connecting structure using threads at two ends of the crank has the following problems: 1. the user is easy to cause the conditions of thread sliding, locking loose and the like during installation; 2. after a period of use, the screw thread at the joint of the pedal and the crank is easy to loosen, and the abnormal vibration occurs; 3. once the crank screw teeth are damaged in the installation process, the crank cannot be maintained and replaced under the condition that no special tool exists, the operation difficulty is high, and the maintenance cost is high.
Disclosure of Invention
Therefore, it is desirable to provide a pedal assembly that can be quickly installed to solve the problem of failure of the existing connecting threads of the crank and the pedal.
To achieve the above object, the present inventors have provided a pedal assembly capable of being quickly installed, comprising:
a crank, one end of the crank is provided with a crank connecting hole,
a pedal, wherein a pedal jack is arranged on the pedal,
the fixed shaft is of a hollow structure, the fixed shaft penetrates through the pedal jack, the fixed shaft comprises a fixed shaft body and an expansion part connected with the fixed shaft body, and the expansion part penetrates through the crank connecting hole;
the tensioning shaft is arranged in the hollow structure of the fixed shaft in a penetrating mode, the connecting end of the tensioning shaft is provided with an extrusion part with the inner cross section gradually increasing from the outside, the extrusion part is adapted to the expansion part, the locking end of the tensioning shaft and the locking end of the fixed shaft are provided with locking structures, and the locking structures are used for changing the relative positions between the tensioning shaft and the fixed shaft, so that the extrusion part extrudes the expansion part to deform and clamp the expansion part in the crank connecting hole.
Further, the locking end of the tightening shaft protrudes out of the locking end of the fixing shaft.
Further, the locking structure is respectively connected with the locking end of the tensioning shaft and the locking end of the fixing shaft.
Further, the locking structure comprises a first threaded connecting piece and a second threaded connecting piece, the locking ends of the fixed shaft and the tensioning shaft are provided with threaded structures, the first threaded connecting piece is matched with the threaded structures of the locking ends of the fixed shaft, and the second threaded connecting piece is matched with the threaded structures of the locking ends of the tensioning shaft.
Further, the expansion part comprises a plurality of expansion part units, one ends of the expansion part units are connected to the fixed shaft, the other ends of the expansion part units extend towards the direction away from the fixed shaft, and the expansion part units are uniformly distributed on the edge of the hollow structure of the fixed shaft.
Further, the outer edge of one end of the expansion part unit far away from the fixed shaft is provided with a clamping lug, and the clamping lug is used for being matched with the step structure on the crank connecting hole.
Further, at least one of the outer surfaces of the expansion part units is provided with a first tangent plane, the hole wall of the crank connecting hole is provided with a second tangent plane, and the fixed shaft is pre-fixed in the crank connecting hole through the adaptation of the first tangent plane and the second tangent plane.
Further, the outer surface of the tensioning shaft is provided with a third tangent plane, a fourth tangent plane is arranged in the hollow structure of the fixed shaft, and the tensioning shaft is pre-fixed in the fixed shaft through the adaptation of the third tangent plane and the fourth tangent plane.
Further, a shaft sleeve or a bearing is arranged between the fixed shaft and the pedal jack.
Further, the part of the fixed shaft arranged in the pedal jack is a stepped shaft, different shaft sleeves are matched with different shaft sections, and the tightening shaft is also a stepped shaft matched with the fixed shaft.
Compared with the prior art, the technical scheme has the following advantages: this pedal subassembly simple to operate that can install fast, the user only need install tight axle and fixed axle on the crank and pedal after, extrude expansion portion through locking structure and just can realize pedal installation, expansion portion is receiving after operation such as extrusion, tensile, rotation or pressing, can change its initial shape for expansion portion chucking is in the crank connecting hole, thereby connects crank and footboard, installs firm difficult production between footboard and the crank and rocks, and this pedal subassembly that can install fast is not fragile, the maintenance operation degree of difficulty is little, cost of maintenance is low, ordinary user can operate.
Drawings
FIG. 1 is a schematic view of the overall structure of a pedal assembly capable of being quickly installed according to the present embodiment;
FIG. 2 is a perspective view of a crank of the rapidly mountable pedal assembly of the present embodiment;
FIG. 3 is a cross-sectional view of a crank of the rapidly mountable pedal assembly of the present embodiment;
FIG. 4 is a perspective view of a stationary shaft of a quick-install foot pedal assembly according to the present embodiment;
FIG. 5 is a side view of a stationary shaft of a quick-install foot pedal assembly according to the present embodiment;
FIG. 6 is a cross-sectional view at A-A in FIG. 5;
FIG. 7 is a perspective view of a tightening shaft of a rapidly installable foot pedal assembly according to this embodiment;
FIG. 8 is a schematic view of a quick-install foot pedal assembly according to the present embodiment;
fig. 9 is an exploded view of a quick-install foot pedal assembly according to this embodiment.
Reference numerals illustrate:
1. a crank;
11. a crank connecting hole;
111. a second cut surface;
12. a center shaft connecting hole;
13. a step structure;
2. a pedal;
21. pedal insertion holes;
3. a fixed shaft;
31. a fixed shaft body;
311. a step-like projection structure;
32. an expansion section;
321. an expansion unit;
322. a clamping convex block;
323. a first cut surface;
33. a locking end of the fixed shaft;
34. a fourth section;
4. a tightening shaft;
41. an extrusion part;
42. the locking end of the shaft is tightly pulled;
43. a third section;
51. a first threaded connection;
52. a second threaded connection;
6. a shaft sleeve.
Detailed Description
In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present application, and thus are only exemplary and not intended to limit the scope of the present application.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.
Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the application.
In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that three relationships may exist, for example a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.
In the present application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.
Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.
As in the understanding of "review guidelines," the expressions "greater than", "less than", "exceeding" and the like are understood to exclude this number in the present application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.
In the description of embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present application.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the application should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to circumstances.
Referring to fig. 1 to 9, a pedal assembly capable of being quickly installed according to the present embodiment includes:
a crank 1, a crank connecting hole 11 is arranged at one end of the crank 1,
a pedal 2, wherein a pedal jack 21 is arranged on the pedal 2,
the fixed shaft 3, the fixed shaft 3 is of a hollow structure, the fixed shaft 3 is arranged in the pedal jack 21 in a penetrating way, the fixed shaft 3 comprises a fixed shaft body 31 and an expansion part 32 connected with the fixed shaft body, and the expansion part 32 is arranged in the crank connecting hole 11 in a penetrating way;
the tensioning shaft 4, tensioning shaft 4 wears to locate in the hollow structure of fixed axle 3, tensioning shaft 4's link is provided with the extrusion portion 41 that increases gradually from inside to outside cross-section, extrusion portion 41 is adapted to expansion portion 32, tensioning shaft's locking end 42 is provided with locking structure with the locking end 33 of fixed axle, locking structure is used for changing the relative position between tensioning shaft 4 and the fixed axle 3 for extrusion portion 41 extrudes expansion portion 32 and makes it produce deformation and thereby chucking in crank connecting hole 11.
As shown in fig. 2 and 3, two ends of the crank 1 are respectively provided with a crank connecting hole 11 and a middle shaft connecting hole 12, the crank connecting hole 11 is used for connecting the pedal 2, the middle shaft connecting hole 12 is used for connecting a middle shaft, and the middle shaft connecting hole 12 refers to the existing middle shaft connecting hole 12 structure.
Pedal insertion holes 21 formed in the pedal 2 penetrate through both end portions of the pedal 2. The fixed shaft 3 and the tightening shaft 4 are all arranged in the pedal jack 21 in a penetrating way, and at least one end part of the fixed shaft 3 and the tightening shaft 4 protrudes out of the pedal jack 21 and is used for being connected with the crank 1, the other end parts of the fixed shaft 3 and the tightening shaft 4 can also protrude out of the pedal jack 21, namely, the locking structures of the fixed shaft 3 and the tightening shaft 4 can be positioned outside the pedal 2, or the other end parts of the fixed shaft 3 and the tightening shaft 4 can not protrude out of the pedal jack 21, namely, the locking structures of the fixed shaft 3 and the tightening shaft 4 can be positioned in the pedal 2.
As shown in fig. 4, 5 and 6, the portion of the fixed shaft 3 penetrating into the pedal insertion hole 21 has a cylindrical structure, so that the pedal 2 in the mounted pedal assembly can rotate around the outer surface of the fixed shaft 3. The hollow structure of the fixed shaft 3 forms openings at two ends of the fixed shaft 3, one end opening of the fixed shaft 3 is used for the tensioning shaft 4 to pass out, and the other end opening of the fixed shaft 3 is used for connecting the locking structure or/and for the tensioning shaft 4 to pass out.
As shown in fig. 7, the tightening shaft 4 has a columnar structure, and the tightening shaft 4 may have a columnar structure, a prismatic structure, a truncated cone structure, or other columnar structures. In one embodiment, the fixing shaft 3 may be a tubular structure, the hollow structure of the fixing shaft 3 is circular in cross section, the tightening shaft 4 is also a cylindrical structure, and the tightening shaft 4 is adapted to the fixing shaft 3. The tensioning shaft 4 is arranged behind the fixed shaft 3 in a penetrating way, and the tensioning shaft 4 and the fixed shaft 3 can not rotate relatively; or in some embodiments, after the tightening shaft 4 is inserted through the fixed shaft 3, the tightening shaft 4 and the fixed shaft 3 can rotate relatively, and after the tightening shaft 4 and the fixed shaft 3 are tightly matched with each other through the extrusion part 41 and the expansion part 32 or are locked through the locking structure, the tightening shaft 4 and the fixed shaft 3 can not rotate relatively any more.
The extrusion part can be a truncated cone-shaped structure, a pyramid-shaped structure or a prismatic table-shaped structure. From inside to outside refers to a direction outward from the body direction of the tensioning shaft.
The section shape of the fixed shaft body 31 is circular, the crank connecting hole 11 is a circular hole, and the section diameter of the fixed shaft body 31 is larger than the aperture of the crank connecting hole 11, so that the fixed shaft body 31 is propped against the outside of the crank connecting hole 11; in other embodiments, the cross-sectional shape of the fixing shaft body 31 is circular, and the crank connecting hole 11 is a square hole or another hole, and then the fixing shaft body 31 abuts against the outside of the crank connecting hole 11. In some embodiments, when the fixed shaft 3 is connected to the crank connecting hole 11, the fixed shaft body 31 is located outside the crank connecting hole 11, and only the expansion portion 32 is located inside the crank connecting hole 11; or in other embodiments, when the fixed shaft 3 is connected with the crank connecting hole 11, the expansion part 32 and part of the fixed shaft body 31 close to the expansion part 32 are located in the crank connecting hole 11 together, the rest part of the fixed shaft body 31 is located outside the crank connecting hole 11, and the part of the fixed shaft body 31 located outside the crank connecting hole 11 is connected with the pedal insertion hole 21.
The expansion portion 32 can change its original shape after being pressed, stretched, rotated, or pressed, etc., so that the expansion portion 32 is caught in the crank coupling hole 11, thereby coupling the crank 1 and the pedal 2.
In some embodiments, at least a portion of the fixed shaft body 31 is abutted against the outside of the crank connecting hole 11, i.e. at least a portion of the end of the fixed shaft body 31 away from the expansion portion 32 is abutted against the outside of the crank connecting hole 11; or in other embodiments, the fixed shaft body 31 is completely arranged outside the crank connecting hole 11 and is connected with the crank connecting hole 11 only through the expansion part 32; the beneficial effects of propping up the outer crank connecting hole 11 through the fixed axle body 31 lie in: facilitating the pre-positioning of the mounting between the stationary shaft 3 and the crank attachment hole 11. In some embodiments, to facilitate the connection and positioning between the fixed shaft 3 and the pedal 2, at least a portion of the fixed shaft body 31 may be disposed to abut against the pedal insertion hole 21, i.e. at least a portion of the end of the fixed shaft body 31 away from the expansion portion 32 abuts against the pedal insertion hole 21. The structure of the fixing shaft body 31 for abutting against the outer side of the crank connecting hole 11 and the structure of the fixing shaft body for abutting against the outer side of the pedal insertion hole 21 may be the same structure, and may specifically be a stepped protrusion structure 311 on the fixing shaft body 31.
In some preferred embodiments, the locking end 42 of the tightening shaft protrudes from the locking end 33 of the fixing shaft, which has the advantage of facilitating the locking structure acting on the tightening shaft 4, so that the tightening shaft 4 and the fixing shaft 3 can relatively move axially. In other embodiments, the locking end 42 of the tightening shaft may not protrude beyond the locking end 33 of the fixing shaft, and the locking structure may need to be fitted within the fixing shaft 3 in order to be engaged with the fixing shaft 3 and/or the tightening shaft 4.
In certain preferred embodiments, the locking structure is coupled to the locking end 42 of the tightening shaft and the locking end 33 of the fixed shaft, respectively. The locking structure may be an integral structure or a split structure. When the locking structure is integrated, when the locking structure is connected with the fixed shaft 3 and the tightening shaft 4, the fixed shaft 3 and the tightening shaft 4 can be synchronously locked and connected, the locking structure and the locking connection of the fixed shaft 3 have the functions of fixedly locking the fixed shaft 3 in the pedal jack 21, the part of the fixed shaft body 31, which is propped against the outside of the pedal jack 21, can assist the connection between the locking structure and the fixed shaft 3, the locking structure is used for locking and connecting the tightening shaft 4, and the extrusion part 41 of the tightening shaft 4 extrudes the expansion part 32 in the gradual locking process, so that the expansion part 32 is deformed and clamped in the crank connecting hole 11.
In some preferred embodiments, the locking structure includes a first threaded connector 51 and a second threaded connector 52, the locking ends 42 of the fixing shaft 3 and the tightening shaft are both provided with threaded structures, the first threaded connector 51 is matched with the threaded structure of the locking end of the fixing shaft 3, and the second threaded connector 52 is matched with the threaded structure of the locking end of the tightening shaft 4. The first screw member and the second screw member are independent from each other. The first screw member and the second screw member may be nuts, the locking ends 42 of the fixing shaft 3 and the tightening shaft are respectively provided with an external screw thread, the internal screw thread of the first screw member is matched with the external screw thread of the locking end of the fixing shaft 3, the internal screw thread of the second screw member is matched with the external screw thread of the tightening shaft 4, when in use, the fixing shaft body 31 is inserted into the pedal jack 21, the expansion part 32 is inserted into the crank connecting hole 11 (the expansion part 32 can be freely pulled out and inserted into the crank connecting hole 11 before being deformed), the tightening shaft 4 is inserted into the fixing shaft body 31 from one end of the expansion part 32 of the fixing shaft 3, then the first screw member is screwed into the locking end 33 of the fixing shaft, the fixing between the fixing shaft 3 and the pedal jack 21 is completed, the second screw member is screwed into the locking end 42 of the tightening shaft, the expansion part 32 of the fixing shaft 3 is extruded by the extrusion part 41 of the tightening shaft 4, the expansion part 32 of the fixing shaft 3 is clamped into the crank connecting hole 11, the second screw member can not only enable the fixing shaft 3 and the tightening shaft 4 to be relatively and the pedal assembly to be firmly displaced in the axial direction, and the pedal assembly can be prevented from being further firmly mounted. Of course, in other embodiments, external threads may be provided on the first screw member and the second screw member, internal threads adapted to the first screw member may be provided on the locking end of the fixed shaft 3, and internal threads adapted to the second screw member may be provided on the locking end 42 of the tightening shaft.
In a specific embodiment, the first threaded connection is a hex nut and the second threaded connection is a locknut.
In some preferred embodiments, the expansion part 32 includes a plurality of expansion part 32 units 321, one end of the expansion part unit 321 is connected to the fixed shaft 3, the other end of the expansion part unit 321 extends in a direction away from the fixed shaft 3, and each expansion part unit 321 is uniformly distributed on the hollow structure edge of the fixed shaft 3. The respective expansion unit 321 may be disposed at intervals. The number of the expansion unit 321 is two or more. The expansion portion 32 may have a sector ring structure adapted to the fixed shaft body 31 in cross section. In the process of pressing the expansion portion 32 by the pressing portion 41 to deform, the expansion portion unit 321 is bent from inside to outside. The expansion units 321 can be provided with pre-connecting parts, the pre-connecting parts can be made of sheet plastic with smaller strength, and the pre-connecting parts are used for preventing deformation of the expansion units 321 caused by improper operation in the transportation process of the pedal assembly capable of being quickly installed, and the pre-connecting parts between the expansion units 321 can be extruded and broken or deformed due to continuous extrusion and application of force to the expansion units 32 by the extrusion parts 41 in the installation process, or a user can destroy the pre-connecting parts before installing the pedal assembly.
In some preferred embodiments, the outer edge of the end of the expansion unit 321 far away from the fixed shaft 3 is provided with a clamping protrusion 322, and the clamping protrusion 322 is used for matching with the step structure 13 on the crank connecting hole 11. The step structure 13 provided on the crank connecting hole 11 is an end inserted away from the fixed shaft 3, and the step structure 13 may be an annular step structure 13 provided on the crank connecting hole 11 or a plurality of step structures 13 provided on the crank connecting hole 11 at intervals. When the expansion unit 321 is pressed by the pressing portion 41 of the tightening shaft 4 to be opened, the clamping protrusion 322 of the expansion unit 321 is clamped into the step structure 13, so that the fixing shaft 3 and the crank 1 are connected. When the crank connecting hole 11 is provided with a plurality of step structures 13 at intervals, before the extrusion, the clamping protrusions 322 and the step structures 13 need to be aligned one by one, and then the expansion part unit 321 is extruded. The engaging projections 322 may be one or more of square block structures, spherical structures, cylindrical structures, mesa structures, or pyramid structures or other protruding structures.
In some preferred embodiments, the outer surface of at least one of the expansion units 321 is provided with a first tangential plane 323, the hole wall of the crank connecting hole 11 is provided with a second tangential plane 111, and the fixing shaft 3 is pre-fixed to the crank connecting hole 11 by adapting the first tangential plane 323 to the second tangential plane 111. The configuration of providing the first cut 323 and the second cut 111 is particularly useful in the case where the expansion unit 321 is in a fanned annular configuration or in the case where the outer surface of the expansion unit 321 is in an arcuate surface. The number of first facets 323 corresponds to the number of second facets 111. The first cut surface 323 of each expansion unit 321 is correspondingly parallel to the wall of the crank connecting hole 11 and is provided with each second cut surface 111. The first tangential plane 323 is specifically a plane parallel to the central axis direction of the fixed shaft 3, and the second tangential plane 111 is parallel to the first tangential plane 323. Or the first tangential plane 323 may be a plane having a certain included angle with the central axis direction of the fixed shaft 3, and the second tangential plane 111 is parallel to the first tangential plane 323. The function of setting the first tangential plane 323 and the second tangential plane 111 is that after the expansion part 32 is placed in the crank connecting hole 11, the relative rotation between the fixed shaft 3 and the crank connecting hole 11 can be effectively prevented after the first tangential plane 323 on the expansion part 32 is matched with the second tangential plane 111 in the crank connecting hole 11. Especially, in the embodiment of the expanding portion unit 321 provided with the clamping bump 322, after the first tangential surface 323 is aligned with the second tangential surface 111, the clamping bump 322 is also aligned with the corresponding step structure 13, so that the expanding portion 32 is conveniently extruded by the tightening shaft 4, and the deformed expanding portion 32 is clamped into the corresponding step structure 13 by the clamping bump 322. Of course, in some embodiments, each of the expansion units 321 is provided with a first cut-out 323, so that the pre-fixing effect of the fixing shaft 3 after being inserted into the crank connecting hole 11 is better.
In some preferred embodiments, the outer surface of the tightening shaft 4 is provided with a third tangential surface 43, a fourth tangential surface 34 is provided in the hollow structure of the fixing shaft 3, and the tightening shaft 4 is pre-fixed in the fixing shaft 3 by adapting the third tangential surface 43 to the fourth tangential surface 34. The number of third tangential planes 43 corresponds to the number of fourth tangential planes 34. The third section 43 of the tightening shaft 4 corresponds to a fourth section 34 arranged in the hollow structure of the fixing shaft 3. The third tangential plane 43 is in particular a plane parallel to the direction of the central axis of the tensioning shaft 4, and the fourth tangential plane 34 is parallel to the third tangential plane 43. Or the third tangential plane 43 may be a plane having a certain angle with respect to the central axis direction of the tightening shaft 4, and the fourth tangential plane 34 may be parallel to the third tangential plane 43. The third tangent plane 43 and the fourth tangent plane 34 are arranged, and the tensioning shaft 4 is arranged in the hollow structure of the fixed shaft 3, and the third tangent plane 43 on the tensioning shaft 4 is matched with the fourth tangent plane 34 in the hollow structure of the fixed shaft 3, so that relative rotation between the tensioning shaft 4 and the fixed shaft 3 can be effectively prevented, and the pre-positioning before tensioning is facilitated. Of course, in some embodiments, more than two third tangential surfaces 43 may be provided on the outer surface of the tightening shaft 4, which has the advantage of making the fixing effect between the tightening shaft 4 and the fixed shaft 3 better after the tightening shaft is inserted.
In some preferred embodiments, an end of the crank connecting hole 11 away from the pedal 2 is provided with an outwardly expanding step structure 13, and the step structure 13 is adapted to the deformed expansion portion 32; or the end of the crank connecting hole 11 far away from the pedal 2 is provided with a conical structure which expands from inside to outside and is used for adapting to the deformed expansion part 32. The outward expansion step structure 13 on the crank connecting hole 11 means that the cross section area of the step structure 13 is larger than other positions of the crank connecting hole 11, so that the expansion part unit 321 is matched with the step structure 13 after outward expansion deformation, and the connection strength between the fixed shaft 3 and the crank 1 is enhanced. The end of the crank connecting hole 11 remote from the pedal 2 may be provided with only the step structure 13 expanding outward, or only the taper structure expanding from inside to outside, or be provided with the taper structure expanding from inside to outside and provided with the step structure 13 at the end of the taper structure remote from the pedal 2.
In some preferred embodiments, a bushing 6 or bearing is provided between the stationary shaft 3 and the pedal insertion hole 21 to provide rotational friction between the stationary shaft 3 and the pedal insertion hole 21.
In some preferred embodiments, the portion of the fixing shaft 3 disposed in the pedal insertion hole 21 is a stepped shaft, and the different shaft segments are adapted to different shaft sleeves 6, and the tightening shaft 4 is also a stepped shaft adapted to the fixing shaft 3. In some embodiments, the fixed shaft 3 is provided as a stepped shaft, the tightening shaft 4 is provided as a stepped shaft or optical axis, or the fixed shaft 3 is an optical axis, and the tightening shaft 4 is a stepped shaft or optical axis. The fixing shaft 3 and/or the tightening shaft 4 are/is provided as the stepped shaft, which has the advantage of being convenient to hide the locking structure connected with the fixing shaft 3 and/or the tightening shaft 4 in the pedal insertion hole 21, so that the pedal assembly structure capable of being quickly installed is more compact, and the locking structure is not easy to separate from the pedal assembly structure.
In certain preferred embodiments, the locking structure is disposed within the pedal receptacle 21, making the quick-install pedal assembly more compact and also making the locking structure less prone to disengagement from both.
Finally, it should be noted that, although the embodiments have been described in the text and the drawings, the scope of the application is not limited thereby. The technical scheme generated by replacing or modifying the equivalent structure or equivalent flow by utilizing the content recorded in the text and the drawings of the specification based on the essential idea of the application, and the technical scheme of the embodiment directly or indirectly implemented in other related technical fields are included in the patent protection scope of the application.
Claims (10)
1. A quick-install pedal assembly comprising:
a crank, one end of the crank is provided with a crank connecting hole,
a pedal, wherein a pedal jack is arranged on the pedal,
the fixed shaft is of a hollow structure, the fixed shaft penetrates through the pedal jack, the fixed shaft comprises a fixed shaft body and an expansion part connected with the fixed shaft body, and the expansion part penetrates through the crank connecting hole;
the tensioning shaft is arranged in the hollow structure of the fixed shaft in a penetrating mode, the connecting end of the tensioning shaft is provided with an extrusion part with a gradually-increased section from inside to outside, the extrusion part is adapted to the expansion part, the locking end of the tensioning shaft and the locking end of the fixed shaft are provided with locking structures, and the locking structures are used for changing the relative positions between the tensioning shaft and the fixed shaft, so that the extrusion part extrudes the expansion part to deform and clamp the expansion part in the crank connecting hole; the part of the fixed shaft penetrating through the pedal jack is of a cylindrical structure, so that the pedal in the pedal assembly after installation can rotate around the outer surface of the fixed shaft.
2. The quick-install foot pedal assembly of claim 1 wherein: the locking end of the tensioning shaft protrudes out of the locking end of the fixing shaft.
3. The quick-install foot pedal assembly of claim 1 or 2, wherein: the locking structure is respectively connected with the locking end of the tensioning shaft and the locking end of the fixing shaft.
4. The quick-install foot pedal assembly of claim 1 or 2, wherein: the locking structure comprises a first threaded connecting piece and a second threaded connecting piece, the locking ends of the fixed shaft and the tensioning shaft are provided with threaded structures, the first threaded connecting piece is matched with the threaded structures of the locking ends of the fixed shaft, and the second threaded connecting piece is matched with the threaded structures of the locking ends of the tensioning shaft.
5. The quick-install foot pedal assembly of claim 1 wherein: the expansion part comprises a plurality of expansion part units, one ends of the expansion part units are connected to the fixed shaft, the other ends of the expansion part units extend towards the direction away from the fixed shaft, and the expansion part units are uniformly distributed on the edge of the hollow structure of the fixed shaft.
6. The quick-install foot pedal assembly of claim 5 wherein: the outer edge of one end of the expansion part unit far away from the fixed shaft is provided with a clamping lug, and the clamping lug is used for being matched with the step structure on the crank connecting hole.
7. The quick-install foot pedal assembly of claim 6 wherein: at least one the surface of expansion portion unit is provided with first tangent plane, be provided with the second tangent plane on the pore wall of crank connecting hole, the fixed axle makes it be fixed in the crank connecting hole in advance through first tangent plane and second tangent plane adaptation.
8. The quick-install foot pedal assembly of claim 1 wherein: the outer surface of the tensioning shaft is provided with a third tangent plane, a fourth tangent plane is arranged in the hollow structure of the fixed shaft, and the tensioning shaft is pre-fixed in the fixed shaft through the adaptation of the third tangent plane and the fourth tangent plane.
9. The quick-install foot pedal assembly of claim 1 wherein: a shaft sleeve or a bearing is arranged between the fixed shaft and the pedal jack.
10. The quick-install foot pedal assembly of claim 1 wherein: the part of the fixed shaft arranged in the pedal jack is a stepped shaft, different shaft sleeves are matched with different shaft sections, and the tightening shaft is also a stepped shaft matched with the fixed shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211230193.0A CN115463383B (en) | 2022-10-08 | 2022-10-08 | But pedal subassembly of quick installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211230193.0A CN115463383B (en) | 2022-10-08 | 2022-10-08 | But pedal subassembly of quick installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115463383A CN115463383A (en) | 2022-12-13 |
| CN115463383B true CN115463383B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211230193.0A Active CN115463383B (en) | 2022-10-08 | 2022-10-08 | But pedal subassembly of quick installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115463383B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549589U (en) * | 1991-12-10 | 1993-06-29 | 株式会社スギノテクノ | Crank and pedal shaft coupling structure |
| US5440950A (en) * | 1991-12-09 | 1995-08-15 | Tranvoiz; Rene | Device for quick mounting and removal of a shaft, such as a pedal shaft |
| EP2228292A1 (en) * | 2009-03-13 | 2010-09-15 | Chung-I Chen | Quick release device |
| CN102072792A (en) * | 2009-09-22 | 2011-05-25 | 洛克塞格尔国际公司 | Bicyle-mounted apparatus for measuring forces and bicycle with the same |
| CN104500523A (en) * | 2014-12-17 | 2015-04-08 | 广西职业技术学院 | Aluminum quick connection piece for display panel |
| CN106697165A (en) * | 2016-12-24 | 2017-05-24 | 陈勇 | Push type detachable pedal spindle structure |
| CN111301598A (en) * | 2018-12-11 | 2020-06-19 | 北京骑胜科技有限公司 | Crank pedal mechanism, pedal device and vehicle |
| CN218248331U (en) * | 2022-10-08 | 2023-01-10 | 福建野小兽健康科技有限公司 | Foot pedal assembly capable of being quickly installed |
-
2022
- 2022-10-08 CN CN202211230193.0A patent/CN115463383B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440950A (en) * | 1991-12-09 | 1995-08-15 | Tranvoiz; Rene | Device for quick mounting and removal of a shaft, such as a pedal shaft |
| JPH0549589U (en) * | 1991-12-10 | 1993-06-29 | 株式会社スギノテクノ | Crank and pedal shaft coupling structure |
| EP2228292A1 (en) * | 2009-03-13 | 2010-09-15 | Chung-I Chen | Quick release device |
| CN102072792A (en) * | 2009-09-22 | 2011-05-25 | 洛克塞格尔国际公司 | Bicyle-mounted apparatus for measuring forces and bicycle with the same |
| CN104500523A (en) * | 2014-12-17 | 2015-04-08 | 广西职业技术学院 | Aluminum quick connection piece for display panel |
| CN106697165A (en) * | 2016-12-24 | 2017-05-24 | 陈勇 | Push type detachable pedal spindle structure |
| CN111301598A (en) * | 2018-12-11 | 2020-06-19 | 北京骑胜科技有限公司 | Crank pedal mechanism, pedal device and vehicle |
| CN218248331U (en) * | 2022-10-08 | 2023-01-10 | 福建野小兽健康科技有限公司 | Foot pedal assembly capable of being quickly installed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115463383A (en) | 2022-12-13 |
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