CN220483496U

CN220483496U - Connecting piece device and riding equipment

Info

Publication number: CN220483496U
Application number: CN202322161873.8U
Authority: CN
Inventors: 周志国
Original assignee: Qingdao Magene Intelligence Technology Co Ltd
Current assignee: Qingdao Magene Intelligence Technology Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-13
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a connector device and riding equipment comprising the same; the connector device comprises a connector, a first connecting area, a second connecting area and an elastomer; the first connecting area and the second connecting area are cylindrical with equal diameters and are coaxially connected; the connector is cylindrical, and the diameter of the connector is larger than that of the first connecting area; the first connecting region is provided with a first external thread, and one end far away from the second connecting region is fixedly connected with the connector; part or all of the first external thread is coated with a coating; the second connecting region is provided with a second external thread connected with the first external thread and a first annular groove coaxial with the second connecting region; the opening of the first annular groove is radially outwards, and the first annular groove is positioned at one end of the second connecting area, which is close to the first connecting area; the elastic body is an O-shaped ring made of flexible materials capable of being deformed elastically, and is adapted to be fixed in the first annular groove. The anti-loosening device improves the safety of riding equipment.

Description

Connecting piece device and riding equipment

Technical Field

The utility model belongs to the technical field of body-building sports equipment, and particularly relates to a connecting piece device and riding equipment.

Background

The bicycle can be used as an environment-friendly transportation means for riding instead of walking. Therefore, more and more people use the bicycle to travel and play, and the purposes of pleasure mind and body and exercise are achieved. The bicycle itself is also a sports sport, including road bike racing, mountain bike racing, field bike racing, stunt bike racing, etc. In addition, exercise bicycles installed in exercise places or households are becoming more popular. Therefore, despite the ever-increasing development of vehicles, bicycles or variant bicycles are still closely accompanied by the lives of modern people.

The crank is used as a transmission component of a bicycle or a variant bicycle, the crank locking connecting piece device is very easy to loosen due to the influence of the pedal force born by alternation in the long-time riding process, and the risk of falling off the crank is caused; this requires the user to frequently check whether the crank screw is loosened or not during use; if the connector device is loosened once and not found in time by a user, safety accidents are very easy to occur.

Disclosure of Invention

The utility model provides a connecting piece device and riding equipment, which can improve the anti-loosening performance of threaded connection, prevent a crank arm from falling off and improve riding safety.

In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:

a connector device comprises a connector, a first connecting area, a second connecting area and an elastomer;

the first connecting area and the second connecting area are cylindrical with equal diameters and are coaxially connected; the connector is in a coaxial cylindrical shape with the diameter larger than that of the first connecting area; the first connecting region is provided with a first external thread, and one end far away from the second connecting region is fixedly connected with the connector; part or all of the first external thread is coated with engineering resin paint; the second connecting region is provided with a second external thread connected with the first external thread and a first annular groove coaxial with the second connecting region; the opening of the first annular groove is radially outwards, and the first annular groove is positioned at one end of the second connecting area, which is close to the first connecting area;

the elastic body is an O-shaped ring made of flexible materials capable of being deformed elastically, and is adapted to be fixed in the first annular groove.

According to some specific embodiments of the present application, the wire diameter of the elastomer does not exceed the pitch of the external thread; the width of the first annular groove is matched with the wire diameter of the elastic body in a mounting mode.

According to some specific embodiments of the present application, a second annular groove is formed between one end of the first connection region, which is close to the connector, and an opening of the second annular groove faces radially outwards, so as to be used for installing a gasket.

According to some specific embodiments of the present application, the elastomer is made of rubber.

According to some specific embodiments of the present application, the height of the elastomer is no greater than the height of the major diameter of the external thread and no less than the height of the minor diameter of the external thread.

According to some specific embodiments of the present application, a first regular polygonal groove is formed in the connector towards the axially outer side of the connector, and extends into one end of the first connection area near the connector for connecting a dismounting tool.

According to some specific embodiments of the present application, a first regular polygonal or circular groove is formed in the connector towards the axially outer side of the connector, which extends into an end of the first connection zone near the connector;

a second groove which is coaxial and regular polygonal is formed in the second connecting area, extends into the first connecting area and is communicated with the first groove; the first groove and the second groove have the same circumscribing circle, and the number of sides of the first groove is larger than that of the second groove.

According to some specific embodiments of the application, the second groove is regular hexagonal in cross section.

A riding device comprises a crank arm, a crank shaft and the connecting piece device;

one end of the crank arm is provided with a first through hole perpendicular to the length direction; two ends of the first through hole are respectively provided with a second through hole and a third through hole which are coaxial; the sizes of the second through hole and the third through hole are larger than those of the first through hole; the tail end of the crank shaft is correspondingly and fixedly matched with the first through hole and the second through hole, and is circumferentially and fixedly arranged in the first through hole and the second through hole;

the third through hole is in installation fit with the connector; the tail end of the crank shaft is provided with a threaded hole which is coaxially in threaded connection fit with the first connecting area and the second connecting area; the connector is located in the third through hole, and the first connecting area, the second connecting area and the threaded hole are in threaded connection.

According to some specific embodiments of the present application, further comprising a spacer; the gasket is provided with a fourth through hole which is in installation fit with one end of the first connecting area, which is close to the connector; the gasket is mounted on the connector device and is located in the first through hole between the tail end of the crankshaft and the connector.

Compared with the prior art, the utility model has the advantages and positive effects that: according to the connecting piece device and the riding equipment comprising the same, the first annular groove and the elastic body arranged in the first annular groove are arranged on the second connecting area of the connecting piece device, so that part of internal threads are connected with the elastic body when the connecting piece device is connected with the threaded hole, and the elastic body deforms in the connecting process and in the final state; the deformation of the elastic body can eliminate the fit clearance when the external thread is connected with the internal thread, and the friction between the internal thread and the external thread is increased, so that the purpose of preventing the connector device from loosening is achieved; the crank arm and the crank shaft are connected more firmly due to the anti-loosening effect of the connecting piece device, so that riding safety is improved; and avoid needing frequent inspection, promote user's use experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of a connector device according to the present utility model;

FIG. 2 is a schematic bottom view of an embodiment of the connector device of FIG. 1;

FIG. 3 is a schematic view of the cross-sectional structure of FIG. 2;

FIG. 4 is a schematic view of the crank arm and crank axle connection.

In the drawing the view of the figure,

1. a connector device; 2. a crank arm; 3. a crank shaft; 4. a coating; 5. a gasket; 11. a connector; 12. a first connection region; 13. a second connection region; 14. an elastomer; 121. a first external thread; 122. a second annular groove; 124. a first groove; 131. a second external thread; 132. a first annular groove; 133. a second groove; 21. a first through hole; 22. a second through hole; 23. a third through hole; 31. a threaded hole; 32. an internal thread; 51. and a fourth through hole.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1, 2, 3 and 4, the utility model discloses a connector device and a riding device comprising the connector device 1. The riding device further comprises a crank arm 2, a crank shaft 3, and the connector device 1 is used for connecting the crank arm 2 and the crank shaft 3, so that the crank arm 2 and the crank shaft 3 are fixedly connected, and the crank shaft 3 can rotate around the axis when force is applied to the crank arm 2.

The connector device 1 comprises a connector 11, a first connecting area 12, a second connecting area 13 and an elastic body 14; the first connecting region 12 and the second connecting region 13 are cylindrical with equal diameters and are coaxially connected; the connector 11 is coaxial and cylindrical with a diameter greater than that of the first connecting zone 12; the first connecting region 12 is formed with a first external thread 121, and one end far away from the second connecting region 13 is fixedly connected with the connector 11; part or all of the first external thread 121 is coated with a paint; the second connection region 13 is formed with a second external thread 131 connected to the first external thread 121 and a first annular groove 132 coaxial with the second connection region 13; the first annular recess 132 opens radially outwards and is located at an end of the second connection region 13 near the first connection region 12.

The elastic body 14 is an O-ring made of flexible material capable of elastic deformation, and is adapted to be fixed in the first annular groove 132.

The connector device 1 further comprises an elastomer 14, which is an O-ring made of flexible material capable of undergoing elastic deformation, and the diameter of the O-ring is in installation fit with the first annular groove 132; the elastic body 14 is installed in the first annular groove 132, and when the first external thread 121 of the first connecting region 12 and the second external thread 131 of the second connecting region 13 are connected with the internal thread 32, part of the internal thread 32 is connected with the elastic body 14, so that the elastic body 14 in the first annular groove 132 is deformed, and the deformation of the elastic body 14 can eliminate the fit clearance between the first external thread 121 and the second external thread 131 when the first external thread 121 and the second external thread 131 are connected with the internal thread 32, thereby increasing the friction force of connection and achieving the purpose of preventing the connector device 1 from loosening.

The crank arm 2 and the crank axle 3 of the riding apparatus are fixedly connected by the connector device 1 as follows. One end of the crank arm 2 is formed with a first through hole 21 whose length direction is perpendicular to the length direction of the crank arm 2; a second through hole 22 and a third through hole 23 coaxial with the first through hole 21 are formed at both ends of the first through hole 21, respectively; the coaxiality here may be circular coaxiality or center line coincidence; the second through hole 22 has a size larger than that of the first through hole 21; the tail end of one end of the crank shaft 3 is respectively corresponding to the first through hole 21 and the second through hole 22 in a mounting fit manner, and is circumferentially and fixedly arranged in the first through hole 21 and the second through hole 22; the connection of the second through hole 22 with the crank shaft 3 serves to define a position in one direction of the axial direction when the crank shaft 3 is mounted in the first through hole 21.

The third through hole 23 is in mounting fit with the connector 11; the cross-sectional dimension of the first through hole 21 is smaller than the diameter of the joint 11; the end of one end of the crank shaft 3 is formed with a screw hole 31 coaxial with the crank shaft 3, which includes an internal screw thread 32; the threaded holes 31 are in installation fit with the first connecting area 12 and the second connecting area 13; the connector 11 is positioned in the third through hole 23, and the first connecting area 12 and the second connecting area 13 are connected with the threaded hole 31; the coating 4 connects the first external thread 121 with the internal thread 32.

According to the connector device and the riding equipment comprising the connector device, the first annular groove 132 and the elastic body 14 arranged in the first annular groove 132 are arranged on the second connecting area 13 of the connector device 1, so that part of the internal threads 32 are connected with the elastic body 14 when the connector device 1 is connected with the threaded hole 31, and the elastic body 14 is deformed in the connecting process and in the final state; the deformation of the elastic body 14 can eliminate the fit clearance when the first external thread 121 and the second external thread 131 are connected with the internal thread 32, and increase the friction force between the internal thread 32 and the first external thread 121 and the second external thread 131, so as to achieve the purpose of preventing the connector device 1 from loosening; in addition, the coating 4 is coated on the first connecting area 12 to prevent the coating 4 from falling off, scraping off or excessively dispersing the traction belt when the screwing length of the screw is too long, so as to influence the anti-loosening effect; that is, the coating material 4 is coated on the first connecting area 12 to ensure the anti-loosening effect of the coating material, and the anti-loosening performance of the connector device 1 when used as a connector is further enhanced. The crank arm 2 and the crank shaft 3 are connected more firmly due to the anti-loosening effect of the connecting piece device 1, so that riding safety is improved; and avoid needing frequent inspection, promote user's use experience.

The following describes the specific structure and principles of the connector device and the riding apparatus of the present utility model in detail by way of specific embodiments.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3, and 4, the height of the elastic body 14 in the connector device 1 does not exceed the height of the major diameters of the first external thread 121 and the second external thread 131, and is not lower than the height of the minor diameters of the first external thread 121 and the second external thread 131, so that the internal thread 32 of a part of the first external thread 121 and the second external thread 131 when being connected with the internal thread 32 can be connected with the elastic body 14, and the difficulty is not too high when the connector device 1 is screwed into and out of the threaded hole 31, so that the detachability is improved, that is, the detachment efficiency is improved while the detachment preventing performance is ensured, and the use experience of a user is improved.

The embodiment of the riding equipment comprises the connecting piece device 1, and also has the beneficial effects of improving the dismounting efficiency and improving the user experience.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3, 4, the first annular groove 132 of the connector device 1 is U-shaped in cross-section; at the end of the second connection region 13 near the first connection region 12.

The section of the elastic body 14 is circular, and the thread diameter does not exceed the thread pitches of the first external thread 121 and the second external thread 131; the wire diameter of the elastomer 14 fits within the width of the first annular groove 132.

The embodiment of the riding device comprises the connector device 1 described above.

According to the connector device and the riding equipment of the embodiment, the first annular groove 132 of the connector device 1 is formed in one end, close to the first connecting area 12, of the second connecting area 13, so that threads of connection between the elastic body 14 and the internal threads 32 are increased when the first connecting area 12 and the second connecting area 13 of the connector device 1 are connected with the threaded holes 31, deformation of the elastic body 14 is improved to the greatest extent, and then fit gaps of connection between the first external threads 121 and the second external threads 131 and the internal threads 32 are eliminated sufficiently, and an anti-drop effect is enhanced. And the elastic body 14 is located at one end of the second connecting area 13 near the first connecting area 12, so that the thread connecting the elastic body 14 and the internal thread 32 is maximized while the strength of the connector device 1 is ensured, the effective anti-falling length of the threaded hole 31 is increased, and the anti-falling effect of the connector device 1 is further enhanced.

The first annular groove 132 is U-shaped, the line diameter of the elastic body 14 does not exceed the pitch of the first external thread 121 and the second external thread 131, and the width of the first annular groove 132 is matched together to limit the depth and the width of the first annular groove 132, so that the arrangement of the first annular groove 132 is prevented from affecting the strength of the connector device 1; that is, the strength of the second connection region 13 is ensured by the limitation of the depth and width of the first annular groove 132.

According to some embodiments of the present application, referring to fig. 1, 2, 3, and 4, the elastomer 14 is made of rubber.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3 and 4, a second annular groove 122 is formed between the end of the first connecting region 12 near the connecting head 11 and the connecting head 11, and its opening faces radially outwards for mounting the gasket 5.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3 and 4, a regular polygonal first groove 124 is formed in the connector 11 towards the axially outer side of the connector 11, and extends into one end of the first connection region 12 near the connector 11, for connecting a dismounting tool to screw the connector device 1 into or out of the threaded hole 31, so as to improve dismounting efficiency.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3 and 4, the cross section of the first groove 124 may also be a regular polygon or a pattern with central symmetry or axial symmetry, so that the dismounting tool cooperates with the first groove to form a circumferential driving force for dismounting the connector device 1.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3, 4, the connector 11 is formed with a regular polygonal or circular first groove 124 towards the axially outer side of the connector 11, which extends into the end of the first connection zone 12 near the connector 11.

A second groove 133 of a regular polygon is formed at an end of the second connection region 13 away from the connection head 11, which is coaxial with the second connection region 13 toward an outer side of the end of the second connection region 13 away from the connection head 11, and communicates with the first groove 124; the first groove 124 and the second groove 133 have the same circumscribing circle, and the number of sides of the first groove 124 is larger than that of the second groove 133, so that the tail end of the dismounting tool can conveniently pass through the first groove 124 to enter the second groove 133.

The arrangement of the first groove 124 and the second groove 133 in the embodiment enables the connector device 1 to connect the first groove 124 or the first groove 124 and the second groove 133 or the second groove 133 by a disassembling tool to disassemble the connector device 1, so as to improve the torsion force for disassembling and adapting the connector device, and further improve the disassembling efficiency and stability of the connector device; in addition, the twisting is prevented from being scrapped, and the service life of the connector device 1 is prolonged.

Embodiments of the riding apparatus include the connector device described above.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3 and 4, the cross section of the second groove 133 is regular hexagon, so as to improve the applicability of the connector device 1 to the dismounting tool.

According to some specific embodiments of the present application, referring to fig. 4, the first through hole 21 and the second through hole 22 of the crank arm 2 may have a regular polygon structure, so as to achieve a circumferentially fixed connection between the crank axle 3 and the crank arm 2 and define an axial position of the crank axle 3 relative to the crank arm 2.

Of course, the first through hole 21 may be square; the second through hole 22 may be circular; the end of the crank shaft 3 is square and circular to accommodate the first and second through holes 21, 22, respectively.

According to some specific embodiments of the present application, referring to fig. 1, 2, 3, and 4, the coating 4 on the first external threads 121 on some or all of the first connection region 12 may be a falling-resistant, thread compound or other engineering resin type coating having an anti-loosening effect.

According to some specific embodiments of the present application, referring to fig. 4, the riding device further comprises a spacer 5 formed with a fourth through hole 51; the fourth through hole 51 is matched with one end of the first connecting area 12 close to the connecting head 11; the spacer 5 is mounted on the connector device 1 between the end of the crank shaft 3 and the connector 11 in the first through hole 21.

The riding device of the embodiment enhances the connection stability of the connecting piece device 1 and the crank shaft 3 through the gasket 5 arranged on the connecting piece device 1 and between the tail end of the crank shaft 3 and the connector 11, so that the connecting piece device 1 is not easy to fall off, and the riding safety of the riding device is improved.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The connector device is characterized by comprising a connector, a first connecting area, a second connecting area and an elastomer;

2. The connector device of claim 1, wherein the wire diameter of the elastomer does not exceed the pitch of the external thread; the width of the first annular groove is matched with the wire diameter of the elastic body in a mounting mode.

3. A connector device according to claim 1, wherein a second annular recess is formed between the connector and the end of the first connection zone adjacent the connector, the opening of which faces radially outwards for mounting a gasket.

4. The connector device of claim 1, wherein the elastomer is made of rubber.

5. A connector device according to any one of claims 1 to 4, wherein the elastomer has a height not exceeding the height of the major diameter of the external thread and not lower than the height of the minor diameter of the external thread.

6. The connector device according to claim 5, wherein a first recess of a regular polygon is formed in the connector toward an axially outer side of the connector, and extends into an end of the first connection region near the connector for connection with a dismounting tool.

7. The connector device according to claim 5, characterized in that a regular polygonal or circular first groove is formed in the connector towards the axially outer side of the connector, which groove extends into the end of the first connection zone near the connector;

8. The connector device of claim 7, wherein the second groove cross-section is a regular hexagon.

9. A riding apparatus comprising a crank arm, a crank axle and a connector device according to any one of claims 1 to 8;

10. The riding device of claim 9, further comprising a spacer; the gasket is provided with a fourth through hole which is in installation fit with one end of the first connecting area, which is close to the connector; the gasket is mounted on the connector device and is located in the first through hole between the tail end of the crankshaft and the connector.