Movably-assembled curved pair device, bicycle bottom fork and bicycle

Abstract

The utility model provides a movable assembling curved pair device, a bicycle bottom fork and a bicycle, the movable assembling curved pair device comprises a curved pair body and a limiting piece, the curved pair body comprises a first connecting part and a limiting part, the limiting part is provided with a curved pair groove used for containing a locking brake head positioning plate, and the limiting piece is in threaded fit with a limiting hole, so that the locking brake head positioning plate can be positioned in the curved pair groove. And the head positioning plate can be fixed in the curved groove, so that the novel intelligent central control lock brake is mounted and fixed. According to the movable assembling curved pair device, the first connecting part is arranged, the mounting hole is formed in the first connecting part, the curved pair body can be fixed to the bottom fork body through fasteners such as screws, and movable assembling of the curved pair body and the bottom fork body is achieved. Therefore, when an existing shared bicycle is upgraded, replaced and modified, the curved pair body can be directly and additionally arranged on the bottom fork body through fasteners such as screws, so that a novel intelligent central control lock can be conveniently mounted, the modification operation is convenient, the cost is low, and the performance is stable and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycles, and particularly relates to a movable assembled crank device, a bicycle flat fork and a bicycle. Background Technique

[0002] Shared bicycles, also known as bike-sharing, are a common means of transportation. They solve the problem of the last mile in the daily commuting of urban residents and have been widely put into use in cities. While providing convenience for people's daily travel, shared bicycles are also more environmentally friendly. With the development of technology, the structure and function of shared bicycles are gradually becoming richer and more perfect. To date, the lock structure of shared bicycles has been upgraded from the original band brake to the current intelligent central control lock, and the locking method has been upgraded from the original manual locking to the current automatic locking, making it more convenient for people to ride and use.

[0003] With the increase of service life, old shared bicycles are gradually replaced by new shared bicycles due to factors such as component wear, aging, and damage. However, old shared bicycles still have the value of recycling and reuse. If directly stacked in waste yards, it will cause waste of energy and land resources. Therefore, a more environmentally friendly solution is to recycle the old shared bicycles on the market, clean them, paint them, upgrade and replace new parts, and then put them back into the market for use.

[0004] When recycling and processing shared bicycles, it is necessary to replace the original old band brake lock with a new intelligent central control lock. One end of the brake body of the intelligent central control lock is provided with a head positioning plate. To fix the intelligent central control lock, a "crank" needs to be installed on the bicycle flat fork. The "crank" is usually a metal component, which is formed with a crank groove adapted to the head positioning plate of the brake body. During installation, the head positioning plate of the lock is inserted into the crank groove, and the "crank" is used to limit and fix the intelligent central control lock. In the prior art, the "crank" and the vehicle frame (specifically the rear flat fork) are connected as a whole by welding. In order to complete the welding smoothly, there should be no paint layer at the welding position, which results in that when upgrading and transforming the lock of the existing bicycle, it is necessary to remove the paint on the vehicle frame before welding the "crank", and the operation steps are cumbersome and the transformation cost is high. Content of the Utility Model

[0005] The utility model provides a movable assembled crank device, a bicycle flat fork and a bicycle, aiming to realize the movable assembly of the crank when upgrading the bicycle lock, and reduce the transformation difficulty and cost.

[0006] To achieve the above object, the technical solution adopted by the utility model is:

[0007] In the first aspect, the utility model provides a movable assembled crank device, including:

[0008] The crank body includes a first connecting portion and a limiting portion. The first connecting portion has a mounting hole, and the mounting hole is used to be connected to the flat fork body through a fastener. The limiting portion is formed with a crank groove, and a limiting hole penetrating through the wall thickness of the limiting portion is formed on the side wall of the crank groove; and

[0009] A limiting member is threadedly engaged in the limiting hole.

[0010] In a possible implementation manner, a limiting boss is further provided on the side of the first connecting portion adjacent to the flat fork body.

[0011] In a possible implementation manner, the crank body further includes a second connecting portion, and the second connecting portion is located on the side of the limiting portion away from the first connecting portion.

[0012] In a possible implementation manner, the first connecting portion is connected below the limiting portion, the second connecting portion is connected above the limiting portion, and the second connecting portion is formed with a hook-shaped groove with an opening facing downwards.

[0013] In a possible implementation manner, the crank body is a stamping integral component.

[0014] In a possible implementation manner, the limiting portion includes an upper plate, a lower plate and a side plate. The upper plate and the lower plate are arranged at intervals up and down. The side plate is connected between the upper plate and the lower plate. The upper plate, the side plate and the lower plate jointly enclose the crank groove. The first connecting portion is connected to one of the upper plate and the lower plate. At least one of the upper plate, the lower plate and the side plate is provided with the limiting hole, and the limiting member corresponds to the limiting hole one by one.

[0015] Compared with the prior art, the beneficial effects of the movable assembly crank device provided by the present invention are:

[0016] The movable assembly crank device provided by the present invention includes a crank body and a limiting member. The crank body includes a first connecting portion and a limiting portion. The limiting portion has a crank groove for accommodating the head positioning plate of the lock. Through the limiting member threadedly engaged with the limiting hole, the head positioning plate can be fixed in the crank groove to realize the installation and fixation of the new intelligent central control lock. The first connecting portion has a mounting hole, and the mounting hole corresponds to the fixing hole on the flat fork body. The crank body can be fixed on the flat fork body through fasteners such as screws to realize the movable assembly of the crank body and the flat fork body.

[0017] Compared with the welding and fixing method in the prior art, the movable assembly crank device provided by the present utility model can achieve movable assembly with the flat fork body by setting the first connecting portion and opening an installation hole on the first connecting portion. In this way, when upgrading and replacing the lock of the existing shared bicycle, the crank body can be directly added to the flat fork body through fasteners such as screws, so as to facilitate the installation of a new type of intelligent central control lock. There is no need to polish the paint surface of the frame, and the subsequent welding steps are omitted. The transformation operation is convenient, the cost is low, and the performance is stable and reliable.

[0018] In a second aspect, the present utility model provides a bicycle flat fork, comprising:

[0019] A flat fork body for installing a wheel, and the flat fork body is provided with a fixing hole;

[0020] A lock, arranged on the flat fork body, and the lock has a head positioning plate;

[0021] The movable assembly crank device as described in any one of the above implementation manners, the installation hole corresponds to the fixing hole, the head positioning plate is accommodated in the crank groove, and one end of the limiting member accommodated in the crank groove abuts against the head positioning plate; and

[0022] A fixing unit, arranged in the installation hole and the fixing hole, for connecting the flat fork body and the crank body.

[0023] In a possible implementation manner, the fixing unit includes:

[0024] A fastening screw, passing through the installation hole and the fixing hole; and

[0025] A nut, threadedly connected to the fastening screw, and a clamping space for clamping the first connecting portion and the flat fork body is formed between the nut and the nut of the fastening screw.

[0026] In a possible implementation manner, the fixing hole is an elongated hole.

[0027] The bicycle flat fork provided by the present utility model includes a flat fork body, a lock, a movable assembly crank device and a fixing unit. The flat fork body is provided with a fixing hole. The crank body can be fixed on the flat fork body through the fixing hole and the fixing unit. The head positioning plate of the lock extends into the crank groove, and the head positioning plate can be locked and fixed through the limiting member, completing the replacement of the new type of intelligent central control lock. In the present utility model, the crank body is installed on the flat fork body in a detachable connection manner. The installation steps are simple and convenient, which helps to re-transform the old and obsolete models of shared bicycles in the market so that they can be put back into the market for use, which is more energy-saving and environmentally friendly.

[0028] In a third aspect, the present utility model provides a bicycle, which includes a bicycle flat fork as described in any of the above implementation manners.

[0029] The bicycle provided by the present utility model adopts the movable fitting crank device or the bicycle flat fork as described in any of the above implementation manners, and has the same technical effects, which will not be elaborated here. Description of the Drawings

[0030] Figure 1 It is an exploded schematic view of the movable fitting crank device and the fixing unit provided in the first embodiment of the present utility model;

[0031] Figure 2 It is an installation schematic view of the movable fitting crank device provided in the first embodiment of the present utility model;

[0032] Figure 3 It is an exploded schematic view of the movable fitting crank device and the fixing unit provided in the second embodiment of the present utility model;

[0033] Figure 4 It is a structural schematic view of the flat fork body in the present utility model;

[0034] Figure 5 It is a structural schematic view of the bicycle flat fork provided in the second embodiment of the present utility model;

[0035] Figure 6 is Figure 5 a partial enlarged view of part A in.

[0036] Description of the Reference Numerals:

[0037] 10. Crank body; 11. First connection part; 111. Installation hole; 112. Limit boss; 12. Limiting part; 121. Crank groove; 122. Limit hole; 123. Upper plate; 124. Side plate; 125. Lower plate; 13. Second connection part; 131. Hook-shaped groove; 20. Limiting part; 30. Flat fork body; 31. Fixing hole; 40. Lock; 41. Head positioning plate; 50. Fixing unit; 51. Fastening screw; 52. Nut; 53. Gasket. Detailed Embodiments

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0039] It should be noted that when an element is referred to as "fixed to", "fixed", or "set" on another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" or "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. When an element is referred to as "disposed on" or "set on" another element, it can be directly on the other element or there may be an intermediate element. "Multiple" means two or more. "At least one" means one or more. "Several" means one or more.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs.

[0041] Please refer to Figures 1 to 6 together, and a movable assembled crank device, a bicycle flat fork, and a bicycle provided by an embodiment of the present utility model will be described below.

[0042] Please refer to Figure 1 and Figure 2 In a first aspect, an embodiment of the present utility model provides a movable assembled crank device, including a crank body 10 and a limiting member 20. The crank body 10 includes a first connecting portion 11 and a limiting portion 12. The first connecting portion 11 has a mounting hole 111, and the mounting hole 111 is used to be connected to the flat fork body 30 through a fastener. The limiting portion 12 is formed with a crank groove 121, and the crank groove 121 is used to accommodate the head positioning plate 41 of the lock 40. A limiting hole 122 penetrating through the wall thickness of the limiting portion 12 is opened on the side wall of the crank groove 121; the limiting member 20 is threadedly engaged in the limiting hole 122. As Figure 5 shown, the crank body 10 is installed on one side of the flat fork body 30.

[0043] Compared with the prior art, the beneficial effects of the movable assembled crank device provided by the embodiment of the present utility model are:

[0044] The movable assembled crank device provided by the embodiment of the present utility model includes a crank body 10 and a limiting member 20. The crank body 10 includes a first connecting portion 11 and a limiting portion 12. The limiting portion 12 has a crank groove 121 for accommodating the head positioning plate 41 of the lock 40. By the limiting member 20 threadedly engaged with the limiting hole 122, the head positioning plate 41 can be fixed in the crank groove 121 to realize the installation and fixation of the new type intelligent central control lock 40. The first connecting portion 11 has a mounting hole 111, and the mounting hole 111 corresponds to the fixing hole 31 on the flat fork body 30. The crank body 10 can be fixed on the flat fork body 30 through screws, bolts or other fasteners capable of fixing the crank body 10, so as to realize the movable assembly of the crank body 10 and the flat fork body 30.

[0045] Compared with the welding and fixing method in the prior art, the movable assembly crank device provided by the embodiment of the present invention can realize the movable assembly with the flat fork body 30 by setting the first connection part 11 and opening the mounting hole 111 on the first connection part 11. In this way, when upgrading and replacing the lock of the existing shared bicycle, the crank body 10 can be directly installed on the flat fork body 30 through fasteners such as screws, so as to facilitate the installation of the new intelligent central control lock 40. Since the crank body 10 adopts a movable assembly installation method, there is no need to polish the frame paint surface, and the subsequent welding steps are omitted. The transformation operation is convenient, the cost is low, and the performance is stable and reliable.

[0046] In the embodiment of the present invention, the crank body 10 includes a first connection part 11 and a limiting part 12. The first connection part 11 is used to connect with the frame (specifically the flat fork body 30) to fix the crank body 10. In order to make the crank body 10 have sufficient structural strength, the crank body 10 can be made of metal materials such as stainless steel and carbon steel. Of course, on the premise of meeting the use requirements, the crank body 10 can also be made of non-metal materials such as plastic and carbon fiber.

[0047] The first connection part 11 and the limiting part 12 can be an integral connection structure or a split structure, and are connected into one body by bonding, welding and other methods during installation. The crank body 10 can be manufactured by casting, stamping, 3D printing and other methods.

[0048] The first connection part 11 is provided with a mounting hole 111 penetrating through its thickness direction. One or more mounting holes 111 can be provided according to needs. The mounting hole 111 is used for passing through the fastening screw 51 to connect and fix the crank body 10 and the flat fork body 30. The mounting hole 111 can be a through hole or a threaded hole. The limiting part 12 is formed with a crank groove 121. The crank groove 121 is used for accommodating the head positioning plate 41 of the lock 40. In order to prevent the head positioning plate 41 from shaking in the crank groove 121, the head positioning plate 41 can be tightly pressed and fixed by the limiting part 20 after the lock 40 is installed in place. One or more limiting holes 122 are opened on the side wall of the crank groove 121. The limiting holes 122 are threaded holes. The limiting part 20 is a part such as a screw or a stud. After the limiting part 20 is installed in place, it can tightly press the head positioning plate 41 and limit and fix the head positioning plate 41 in the crank groove 121.

[0049] If only one mounting hole 111 is opened, then the crank body 10 is only fixed by one fixing bolt. When the fixing bolt becomes loose and the pre-tightening force is insufficient, there is a risk of rotation of the crank body 10. To solve this problem, please refer to Figure 3 and Figure 4, in some possible embodiments, a limiting boss 112 is provided on one side of the first connecting portion 11 adjacent to the flat fork body 30. The limiting boss 112 is used to cooperate with the fixing hole 31 on the flat fork body 30 to prevent the crank body 10 from rotating.

[0050] In this embodiment, one or more limiting bosses 112 can be provided as needed. The limiting boss 112 can be integrally formed on the first connecting portion 11, or can be fixed on the first connecting portion 11 by means such as bonding, welding, or screw connection. The limiting boss 112 can be a convex structure in the shape of a cylinder, a square, a waist shape, etc.

[0051] To further improve the connection strength between the crank body 10 and the flat fork body 30, please refer to Figure 3 , Figure 5 and Figure 6 , in some possible embodiments, the crank body 10 further includes a second connecting portion 13. The second connecting portion 13 is located on the side of the limiting portion 12 away from the first connecting portion 11. The second connecting portion 13 is also used to connect to the flat fork body 30. The second connecting portion 13 and the first connecting portion 11 act together to firmly fix the crank body 10 on the flat fork body 30 and prevent it from falling during normal riding.

[0052] Optionally, the second connecting portion 13 can be connected to the flat fork body 30 by means such as snap connection or screw connection.

[0053] Please refer to Figure 3 , Figure 5 and Figure 6 , in some possible embodiments, the first connecting portion 11 is connected below the limiting portion 12, and the second connecting portion 13 is connected above the limiting portion 12. The second connecting portion 13 is formed with a hook-shaped groove 131 with an opening facing downwards.

[0054] In this embodiment, the second connecting portion 13 is formed with a hook-shaped groove 131. The shape and size of the hook-shaped groove 131 are adapted to the corresponding position on the flat fork body 30. The hook-shaped groove 131 can partially accommodate the flat fork body 30, thereby playing a role in limiting and facilitating the installation of the flat fork body 30.

[0055] Please refer to Figure 1 and Figure 3 , in some possible embodiments, the crank body 10 is a stamping integral component. The stamping process is simple, and the shape and size accuracy of the stamped parts are high, and the structural strength is high.

[0056] Please refer to Figure 1 and Figure 3, in some possible embodiments, the limiting portion 12 includes an upper plate 123, a side plate 124, and a lower plate 125. The upper plate 123 and the lower plate 125 are arranged at intervals in the up-and-down direction. The side plate 124 is connected between the upper plate 123 and the lower plate 125. The upper plate 123, the side plate 124, and the lower plate 125 jointly enclose a crank groove 121. The first connecting portion 11 is connected to one of the upper plate 123 and the lower plate 125. At least one of the upper plate 123, the lower plate 125, and the side plate 124 is provided with a limiting hole 122, and the limiting members 20 correspond to the limiting holes 122 one by one.

[0057] In this embodiment, the limiting portion 12 is in a C shape formed by enclosing the upper plate 123, the lower plate 125, and the side plate 124. The limiting portion 12 has at least one limiting hole 122. The limiting member 20 is arranged in the limiting hole 122 and can lock and fix the head positioning plate 41 of the lock brake 40 to prevent the lock brake 40 from moving during riding.

[0058] Please refer to Figure 4 , Figure 5 and Figure 6 , in a second aspect, an embodiment of the present invention provides a bicycle flat fork, which includes a flat fork body 30, a lock brake 40, the movable and assembled crank device in any of the above embodiments, and a fixing unit 50. The flat fork body 30 is used for installing a wheel, and the flat fork body 30 is provided with a fixing hole 31; the lock brake 40 is arranged on the flat fork body 30, and the lock brake 40 has a head positioning plate 41; the mounting hole 111 of the crank body 10 corresponds to the fixing hole 31, the head positioning plate 41 is accommodated in the crank groove 121, and one end of the limiting member 20 accommodated in the crank groove 121 abuts against the head positioning plate 41; the fixing unit 50 is arranged in the mounting hole 111 and the fixing hole 31 for connecting the flat fork body 30 and the crank body 10.

[0059] The bicycle flat fork provided by the embodiment of the present invention includes a flat fork body 30, a lock brake 40, a movable and assembled crank device, and a fixing unit 50. The flat fork body 30 is provided with a fixing hole 31. Through the fixing hole 31 and the fixing unit 50, the crank body 10 can be fixed on the flat fork body 30. The head positioning plate 41 of the lock brake 40 extends into the crank groove 121, and the head positioning plate 41 can be locked and fixed by the limiting member 20 to complete the replacement of the new intelligent central control lock brake 40. In the present invention, the crank body 10 is installed on the flat fork body 30 in a detachable connection manner, and the installation steps are simple and convenient, which helps to retrofit the old and obsolete models of shared bicycles on the market so that they can be put back into the market for use, which is more energy-saving and environmentally friendly.

[0060] In the embodiment of the present utility model, the flat fork body 30 can directly select an existing bicycle flat fork structure on the market. Similarly, the lock brake 40 can also select an existing intelligent central control lock brake 40 on the market. There is no limitation on its specific specifications and models, as long as it can meet the usage requirements. The crank body 10 is movably assembled to the flat fork body 30 through the fixing unit 50, with a simple structure, convenient installation, and low upgrade and transformation costs.

[0061] Please refer to Figure 1 、 Figure 3 and Figure 6 , in some possible embodiments, the fixing unit 50 includes a fastening screw 51 and a nut 52. The fastening screw 51 passes through the mounting hole 111 and the fixing hole 31; the nut 52 is threadedly connected to the fastening screw 51, and a clamping space for clamping the first connecting portion 11 and the flat fork body 30 is formed between the nut 52 and the nut of the fastening screw 51. A gasket 53 can also be provided on one side of the nut of the fastening screw 51. The gasket 53 can be a conventional galvanized gasket 53, or a lock washer, a spring washer, etc.

[0062] Please refer to Figure 4 , in some possible embodiments, the fixing hole 31 is an elongated hole, and the fastening screw 51 and the limiting boss 112 are respectively accommodated in the fixing hole 31.

[0063] In a third aspect, the embodiment of the present utility model further provides a bicycle, which includes the movably assembled crank device or the bicycle flat fork in any of the above embodiments.

[0064] It should be noted that the bicycle in the embodiment of the present utility model refers to vehicles such as human-powered bicycles and electric bicycles.

[0065] It can be understood that the various parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of the various combined embodiments will not be elaborated here. After this explanation, it can be considered that the specification of the present utility model has recorded the various combined embodiments and can support different combined embodiments.

[0066] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A movable assembly device, characterized in that: include: The curved fork body comprises a first connecting portion and a limiting portion, wherein the first connecting portion has a mounting hole, and the mounting hole is used to be connected to the flat fork body through a fastener, and the limiting portion is formed with a curved fork groove, and a side wall of the curved fork groove is provided with a limiting hole that penetrates the wall thickness of the limiting portion; as well as A limiting member is threadedly arranged in the limiting hole.

2. A movable assembly and bending device according to claim 1, characterized in that: A limiting boss is also provided on one side of the first connecting portion adjacent to the flat fork body.

3. The movable assembly and bending device according to claim 1, characterized in that: The curved body further includes a second connection portion, and the second connection portion is located at a side of the limiting portion away from the first connection portion.

4. The movable assembly and bending device according to claim 3, characterized in that: The first connection portion is connected to the lower part of the limiting portion, the second connection portion is connected to the upper part of the limiting portion, and the second connection portion is formed with a hook-shaped groove opening downward.

5. The movable assembly and bending device according to claim 1, characterized in that: The curved body is a stamped one-piece component.

6. A movable assembly and bending device according to claim 1 or 5, characterized in that: The limiting portion includes an upper plate, a lower plate and a side plate, the upper plate and the lower plate are spaced apart from each other, the side plate is connected between the upper plate and the lower plate, the upper plate, the side plate and the lower plate together enclose the curved groove, the first connecting portion is connected to one of the upper plate and the lower plate, at least one of the upper plate, the lower plate and the side plate is provided with the limiting hole, and the limiting piece corresponds to the limiting hole one by one.

7. A bicycle flat fork, characterized in that: include: A flat fork body, used for mounting wheels, wherein the flat fork body is provided with fixing holes; A lock gate, arranged on the flat fork body, and the lock gate has a head positioning plate; The movable assembly curved coupling device according to any one of claims 1 to 5, wherein the mounting hole corresponds to the fixing hole, the head positioning plate is accommodated in the curved coupling groove, and one end of the limiting member accommodated in the curved coupling groove abuts against the head positioning plate; and A fixing unit is provided at the mounting hole and the fixing hole, and is used to connect the flat fork body and the curved fork body.

8. The bicycle flat fork according to claim 7, characterized in that: The fixing unit comprises: A fastening screw is inserted into the mounting hole and the fixing hole; and A nut is threadedly connected to the fastening screw, and a clamping space for clamping the first connecting portion and the flat fork body is formed between the nut and the nut cap of the fastening screw.

9. The bicycle flat fork according to claim 7, characterized in that: The fixing hole is an elongated hole.

10. A bicycle, characterized in that The bicycle comprises a bicycle flat fork as claimed in any one of claims 7 to 9.

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