Spoked rim connecting structure, spoked rim assembling tool, wheel set and bicycle

Abstract

The invention discloses a spoke rim connecting structure, a spoke rim assembling tool, a wheel set and a bicycle. The connecting structure is characterized in that a threaded part is arranged on the side wall of the end of a spoke, and a first rotation stopping part is arranged at the end of the end of the spoke; the wheel rim is provided with a containing cavity, and a nut suitable for being in threaded fit with the threaded part is arranged in the containing cavity. The containing cavity is provided with an opening facing the inner side of the rim to form a mounting hole allowing the spokes to be inserted therein. The nut is in sliding fit with the containing cavity in the axial direction of the nut and is suitable for being in abutting fit with a first limiting wall and a second limiting wall which are arranged in the containing cavity so as to limit the sliding range. The second limiting wall is far away from the mounting hole and is provided with a second rotation stopping part facing the nut; the first rotation stopping part is suitable for being matched with the second rotation stopping part in a rotation stopping mode so as to limit the spoke to rotate in the axial direction of the first rotation stopping part, and after the threaded part is connected to the nut in a threaded mode and before the first rotation stopping part and the second rotation stopping part are matched in a rotation stopping mode, the axial position of the nut in the containing cavity is configured to be suitable for enabling the spoke to be straightened so that the first rotation stopping part can be aligned with the second rotation stopping part. According to the spoke rim connecting structure, the tension of the spokes can be conveniently adjusted, and the stability of the tension adjustment of the spokes can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle wheel sets, and in particular to a spoke rim connecting structure, a spoke rim assembly tool, a wheel set and a bicycle. Background Art

[0002] The wheel set of a bicycle mainly includes the hub, rim, spokes and tire. The hub is located in the center of the wheel set, with bearings installed inside. Its function is to connect the rim and spokes so that the wheel can rotate smoothly. The rim is the outer ring frame of the wheel set, which is used to install the tire and is connected to the hub through spokes. Spokes are slender rod-shaped components that connect the hub and the rim. In the wheel set, multiple spokes are arranged in a staggered or straight-pull manner along the circumference to play a role in supporting and transmitting force. The tire is installed on the outside of the rim and directly contacts the ground, providing grip, cushioning and protection for the bicycle.

[0003] The current spoke-rim connection structure generally has holes evenly distributed along the circumference of the rim, and the ends of the spokes are threaded. After the ends of the spokes are inserted into the holes on the rim, the spoke nuts are screwed on the ends of the spokes. The spoke nuts will abut against the rim, thereby tightening the spokes so that the spokes can be firmly connected to the rim, and the tension of the spokes can be adjusted by adjusting the tightness of the spoke nuts. Appropriate spoke tension is very important for the stability and strength of the wheel. If the spoke tension is too small, the wheel may deform or "jump" during riding; if the spoke tension is too large, it may exert excessive pressure on the rim and hub, causing damage to the components.

[0004] The spoke rim connection structure mentioned above requires a through assembly hole to be set on the rim. Currently, there are two types of rims: one with an external hole and one without an external hole. The type with an external hole means that a through hole for a wrench to be inserted is set on the wall of the rim for mounting the tire, and a through hole corresponding to the position and for the spoke to be inserted is also set on the inner edge of the brake side of the rim. During installation, the nut can be conveniently tightened through the through hole on the outside. The type without an external hole means that there is no through hole on the rim for a wrench to be inserted, and tightening the nut needs to be done on the inner side of the rim, and the nut needs to be put into the rim from the position of the valve when the nut is installed. The rim with an external hole will cause a loss of structural strength of the rim because more through holes are set. When the spoke tension needs to be adjusted for a rim without an external hole, it can be adjusted directly from the inside of the rim without removing the tire. However, when installing spokes on a rim without external holes, the nut can only be inserted from the position of the valve stem, and then the nut must be moved from the inside of the rim to the corresponding spoke hole, so the installation is inconvenient.

[0005] To this end, the prior art proposes a structure in which a nut can be fixedly set on the rim. When connecting the spokes, another nut needs to be screwed to the nut, and the spokes then cooperate with the nut in the axial upper limit position to achieve a fixed connection between the spokes and the rim. However, the spokes and the rim of this structure can only cooperate indirectly through the nut, resulting in unstable adjustment of the spoke tension. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a spoke rim connection structure, a spoke rim assembly tool, a wheel set, and a bicycle. The spoke rim connection structure can facilitate the adjustment of the spoke tension and ensure the stability of the spoke tension adjustment.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] Technical solution 1: A spoke rim connection structure, comprising: a threaded portion is provided on the end side wall of the spoke, and a first anti-rotation portion is provided at the end of the end; the rim is provided with accommodating cavities evenly arranged along the circumferential direction, and a nut suitable for threaded cooperation with the threaded portion is installed in the accommodating cavity; the accommodating cavity has an opening facing the inner side of the rim along the radial direction of the rim to form a mounting hole for inserting the spoke; the nut is slidably cooperated with the accommodating cavity along its axial direction, and is suitable for being cooperated with a first limiting wall and a second limiting wall which are arranged in the accommodating cavity and are opposite to each other in the axial direction thereof The walls abut to limit the sliding range; the first limiting wall is close to the mounting hole, and the second limiting wall is away from the mounting hole and is provided with a second stop portion facing the nut; the first stop portion is suitable for stop-rotation cooperation with the second stop portion to limit the axial rotation of the spoke, and after the threaded portion is screwed to the nut and before the first stop portion forms a stop-rotation cooperation with the second stop portion, the axial position of the nut in the accommodating cavity is configured to be suitable for straightening the spoke so that the first stop portion is aligned with the second stop portion.

[0009] Technical solution 2 based on technical solution 1: the nut is provided with a plug-in portion connected to its internal thread in its axial direction; the plug-in portion is inserted into the mounting hole and always maintains a clearance fit with the mounting hole within the sliding range of the nut; the spoke is suitable for passing through the plug-in portion along its axial direction to cooperate with the nut thread.

[0010] Technical solution three based on technical solution two: a guiding bevel is provided on the inner edge of the free end of the plug-in portion, and the inner diameter of the guiding bevel gradually increases from the inside to the outside along the axial direction of the nut.

[0011] Technical solution four based on technical solution two: the mounting hole extends along the axial direction of the nut, and the part of the accommodating cavity except the mounting hole forms a sliding cavity; the part of the nut located in the sliding cavity is the nut body, and the outer diameter of the nut body is smaller than the inner diameter of the sliding cavity.

[0012] Technical solution five based on technical solution four: the first limiting wall is arranged in the sliding cavity, and the inner diameter of the first limiting wall gradually decreases from the inside to the outside along the axial direction of the nut; the nut body is provided with a first abutting wall for abutting and cooperating with the first limiting wall, and the outer diameter of the first abutting wall gradually increases from the inside to the outside along the axial direction of the nut and is adapted to the shape and size of the first limiting wall.

[0013] Technical solution six based on technical solution five: the wheel rim includes a wheel rim body, a first embedded part and a second embedded part; the first embedded part and the second embedded part are fixedly connected to each other and are both fixedly arranged on the wheel rim body, and cooperate to form the accommodating cavity; the first limiting wall and the mounting hole are arranged on the first embedded part; the second limiting wall and the second stopper are arranged on the second embedded part; the wheel rim body is provided with a through hole corresponding to the mounting hole.

[0014] Technical Solution 7 based on Technical Solution 2: The nut is provided with a first mating portion at the free end of its plug-in portion for mating with an assembly tool along the axial direction of the nut to rotate the nut.

[0015] Technical solution eight based on technical solution seven: the spoke is provided with a second mating portion for mating with an assembly tool along its axial direction to fix the spoke.

[0016] Technical solution nine based on technical solution eight: the first matching portion and the second matching portion are at least one group of grooves symmetrically arranged along the circumference of the nut and the spoke, and the openings of the grooves are radially toward the inner side of the rim along the rim.

[0017] Technical solution ten based on technical solution one: the second anti-rotation portion is in the shape of a hole, and the first anti-rotation portion is inserted into the second anti-rotation portion and is limited by the second anti-rotation portion in the circumferential direction to form an anti-rotation fit.

[0018] Technical solution eleven based on technical solution ten: the second anti-rotation portion is a through hole.

[0019] In addition, the present invention also provides Technical Solution 12: a spoke rim assembly tool, which is used to assemble the spokes in the spoke rim connection structure as described in any one of Technical Solutions 1 to 11 to the rim, and is characterized in that it includes a rotating wrench and a stop wrench; the rotating wrench is provided with a first docking portion for axially docking with the nut and circumferentially stop-rotating; the stop wrench is provided with a second docking portion for axially docking with the spoke and circumferentially stop-rotating.

[0020] Technical solution thirteen based on technical solution twelve: the rotating wrench is provided with a hollow first extension rod, and the first docking portion is provided at the end of the first extension rod; the anti-rotation wrench is provided with a second extension rod, the second extension rod is suitable for being placed in the first extension rod, and the second docking portion is provided at the end of the second extension rod.

[0021] In addition, the present invention also provides technical solution fourteen: the spokes are connected to the rim using the spoke rim connection structure as described in any one of technical solutions one to eleven, and a connecting portion is provided at the other end of the spoke relative to the threaded portion, and the connecting portion is threaded and fixed to the hub or snap-fitted along its axial direction.

[0022] In addition, the present invention also provides technical solution 15: a bicycle, comprising a frame, characterized in that the frame is equipped with a wheel set as described in technical solution 14.

[0023] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0024] Technical solution 1 provides a spoke-rim connection structure, which is used to connect the spokes to the rim, which can facilitate the adjustment of the spoke tension and ensure the stability of the spoke tension adjustment.

[0025] In the spoke rim connection structure, a threaded portion and a first anti-rotation portion are provided on the spoke, a receiving cavity is provided in the rim, and an axially sliding nut is installed in the receiving cavity. The end of the spoke can be inserted into the receiving cavity through the mounting hole and form a threaded connection with the nut in the receiving cavity. In the process of locking the nut, the spoke needs to be fixed in the circumferential direction, and then the nut is rotated so that the nut can be close to the first limiting wall of the receiving cavity in the axial direction until the nut is tightly abutted against the first limiting wall, and the spoke is tightened and fixed on the rim. Among them, a second anti-rotation portion is provided on the second limiting wall of the receiving cavity, and a circumferential anti-rotation fit can be formed between the first anti-rotation portion and the second anti-rotation portion, so that after the spoke is assembled to the rim, the rotation of the spoke around its own axis is effectively limited, thereby improving the situation that the spoke is torsionally deformed when subjected to force, reducing the torsional stress of the spoke, and then improving the tension transmission efficiency, which can effectively increase the wheel tension, reduce spoke fatigue damage, extend the service life of the spoke, and improve the durability of the wheel set. In addition, by adjusting the tightening degree of the nut, the spoke tension can be easily and precisely adjusted, and since the nut is directly connected to the threaded portion of the spoke, the adjustment of the nut can be directly transmitted to the spoke through the threaded connection structure, which can greatly improve the efficiency and stability of tension transmission compared to the limited fit method. In addition, since the first anti-rotation portion of the spoke and the second anti-rotation portion of the rim form an anti-rotation fit, the spoke has been fixed in the circumferential direction, so when adjusting the spoke tension by rotating the nut, the set spoke tension value can be well maintained to prevent the tension from changing due to vibration or looseness during use.

[0026] However, since the second anti-rotation part is provided on the second limiting wall of the accommodating cavity, the first anti-rotation part of the spoke needs to accurately form an anti-rotation fit with the second anti-rotation part during the assembly process, and the spoke is usually not straightened when assembled to the rim, and the spoke will still bend to a certain extent after being inserted into the mounting hole, and the curved spoke obviously cannot achieve accurate fit between the first anti-rotation part and the second anti-rotation part. For this reason, in the present technical solution, the nut is set to be slidable in the axial direction, and at the same time, the sliding range of the nut is limited by the fit between the first limiting wall and the second limiting wall. In the initial assembly stage, the threaded portion at the end of the spoke is just inserted into the mounting hole and forms a preliminary threaded connection with the nut. At this time, the spoke will push the nut. Under normal circumstances, the nut will be pushed to the position against the second limiting wall. Then, during the rotation of the nut, the spoke will gradually straighten, and the threaded portion and the threaded portion of the nut will have more threaded matching parts. The first stopper set at the end of the spoke will gradually be guided to the position aligned with the second stopper until the first stopper is exposed from the nut. At this time, the spoke has been straightened, and the nut continues to be rotated. The first stopper can accurately match with the second stopper to form a stopper connection. Through this two-stage assembly method, in stage one, the axial sliding of the nut is used to first smoothly form a threaded connection with the nut and straighten the spoke. In stage two, the spoke is straightened and aligned with the second stopper, and then the spoke is tightened by rotating the nut, thereby ensuring the orderliness and reliability of the spoke assembly process, and can effectively ensure the accurate matching between the first stopper and the second stopper, which can further improve the torsional stress on the spoke, thereby increasing the tension of the wheel.

[0027] In the second technical solution, a plug-in part is provided on the nut, and the plug-in part is in clearance with the mounting hole, so that the nut can maintain sliding in the axial direction, and the nut can be easily rotated from the position of the plug-in part. In addition, when the nut is built into the accommodating cavity and the nut is still sliding in the axial direction, the plug-in part is provided, which can conveniently guide the threaded part of the spoke to enter the nut in the correct direction and initially form a threaded connection with the internal thread of the nut. If the plug-in part is not provided, when the nut slides to a position away from the mounting hole, it is difficult to find the position of the internal thread of the nut after the spoke passes through the mounting hole, which will reduce the assembly efficiency.

[0028] In technical solution three, since the plug-in part is arranged in the mounting hole, it is easy to be obscured by the mounting hole. After the spoke is inserted into the mounting hole, it is easy to misalign the hole of the plug-in part. Therefore, a guiding slope can be arranged to guide the end of the spoke into the plug-in part to improve assembly efficiency.

[0029] In technical solution four, the nut body of the nut slides axially in the sliding cavity of the accommodating cavity, and the outer diameter of the nut body is smaller than the inner diameter of the sliding cavity. The axial sliding of the nut is limited by the clearance fit between the plug-in part and the mounting hole. The sliding cavity serves to prevent the nut body from deflecting. When the nut is rotated, the nut body may not contact the cavity wall of the sliding cavity, thereby reducing the resistance when rotating the nut, and further reducing the torsional stress on the spokes.

[0030] In technical solution five, the abutment between the first limiting wall and the first abutment wall of the nut body is designed to be a conical fitting structure. This structure can enable the position of the nut to be further maintained in a centered state when it abuts against the first limiting wall, thereby avoiding the axial displacement of the nut relative to the mounting hole. At the same time, compared with the planar contact structure, the contact area can be further increased and the stress can be dispersed, thereby improving the reliability and durability of the connection. Moreover, since the stress is dispersed, the wheel tension can be further increased, thereby improving the rigidity of the wheel set.

[0031] In technical solution six, the rim includes a rim body, a first embedded part and a second embedded part. The split design facilitates the molding of the accommodating cavity, reduces the difficulty of processing and manufacturing, and can conveniently place the nut into the accommodating cavity. In addition, it is also convenient for the selection of different materials. For example, the first embedded part and the second embedded part can be made of materials that are more suitable for processing complex shapes or have specific functions, while the rim body can be made of materials that focus more on lightweight or strength, thereby achieving optimal material configuration.

[0032] In the seventh technical solution, a first mating portion that is mated with an assembly tool is provided on the nut, so that a special assembly tool can be used to rotate the nut, thereby improving assembly efficiency and operation convenience. At the same time, with the assembly tool, the tightening torque of the nut can be precisely controlled, thereby more accurately controlling the tension of the spoke.

[0033] In technical solution eight, the provision of the second mating portion on the spoke allows the spoke to be fixed using a special assembly tool to prevent the spoke from rotating when the nut is turned, thereby ensuring the effectiveness of the anti-rotation fit and simplifying the assembly operation.

[0034] In the ninth technical solution, the first matching part and the second matching part are designed as circumferentially symmetrical grooves. The groove structure is simple to process, low in cost, and has good versatility in matching with the assembly tool. The circumferentially symmetrically arranged grooves make the force and torque applied by the assembly tool more evenly balanced, avoiding deformation or damage of parts due to unilateral force.

[0035] In technical solution ten, the first anti-rotation part and the second anti-rotation part are designed as a hole-shaft anti-rotation structure, and the anti-rotation effect is reliable. At the same time, compared with other shapes, the hole-shaped second anti-rotation part is easier to guide the first anti-rotation part to align and insert, thereby improving the success rate of assembly.

[0036] In technical solution eleven, the second anti-rotation part is designed as a through hole. The structure of the through hole allows the first anti-rotation part to extend from the second anti-rotation part. Compared with the countersunk hole structure, the length design of the spoke can have more redundant space, and there can also be more adjustment space when adjusting the spoke tension.

[0037] Technical solution twelfth provides a spoke rim assembly tool, which includes a rotating wrench and a stop wrench. The assembly tool can be used in conjunction with the spoke rim connection structure in the above technical solution to give full play to its advantages of simplified assembly and precise tension adjustment.

[0038] In the technical solution thirteen, the rotating spanner and the anti-rotation spanner are designed as a sleeve structure that can be nested together for use. The sleeve structure allows the rotating spanner and the anti-rotation spanner to be integrated together, with a compact structure and convenient operation. At the same time, the sleeve structure allows the operator to control the rotating spanner and the anti-rotation spanner at the same time, realize synchronous rotation of the nut and fixation of the spoke, and improve assembly efficiency.

[0039] Technical solution fourteen provides a wheel set, which includes a rim, a hub and spokes. It adopts the spoke and rim connection structure provided by the above-mentioned technical solutions one to eleven. Due to the improvement of the connection structure, the overall performance of the wheel set is improved, and it has the effects of simplified assembly, increased spoke torsional strength and wheel tension.

[0040] Technical solution fifteen provides a bicycle that uses the above-mentioned wheel set. Due to the improvement in the performance of the wheel set, the overall performance and user experience of the bicycle are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 It is a structural schematic diagram of a wheel set involved in an embodiment of the present invention;

[0043] Figure 2 The schematic diagram of the partial structure of the wheel set involved in the embodiment of the present invention is as follows Figure 1 ;

[0044] Figure 3 The schematic diagram of the partial structure of the wheel set involved in the embodiment of the present invention is as follows Figure 2 ;

[0045] Figure 4 for Figure 1 Schematic diagram of the structure of the first embedded part, the second embedded part and the nut Figure 1 ;

[0046] Figure 5 for Figure 1 Schematic diagram of the structure of the first embedded part, the second embedded part and the nut Figure 2 ;

[0047] Figure 6 for Figure 1 Schematic diagram of the structure of the middle spoke;

[0048] Figure 7 for Figure 1 A magnified schematic diagram of part A;

[0049] Figure 8 for Figure 1 Schematic diagram of the structure of the middle hub;

[0050] Fig. 9 Schematic diagram of the use of the spoke rim assembly tool according to an embodiment of the present invention Figure 1 ;

[0051] Fig.10 Schematic diagram of the use of the spoke rim assembly tool according to an embodiment of the present invention Figure 2 ;

[0052] Fig.11 It is a schematic structural diagram of a spoke rim assembly tool involved in an embodiment of the present invention.

[0053] Description of main reference numerals:

[0054] Spoke 10; threaded portion 11; first anti-rotation portion 12; second matching portion 13; connecting portion 14; spoke body 15;

[0055] Wheel rim 20; accommodating cavity 21; first limiting wall 211; second limiting wall 212; mounting hole 213; sliding cavity 214; second anti-rotation portion 215; nut 22; plug-in portion 221; guide slope 222; nut body 223; first abutting wall 224; second abutting wall 225; first matching portion 226; wheel rim body 23; through hole 231; first embedded part 24; second embedded part 25;

[0056] Rotating wrench 30; first docking portion 31; first extension rod 32; accommodating groove 33;

[0057] Anti-rotation wrench 40; second docking portion 41; second extension rod 42;

[0058] Hub 50; threaded hole 51. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0061] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0062] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0063] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0064] In the claims, specification and the above-mentioned drawings of the present invention, the term "non-rotation fit" or its variation means: a mode of fit between two or more parts, which is intended to limit the relative rotation between each other so that they maintain a fixed angular relationship or do not produce rotational motion under specific working conditions.

[0065] In the claims, specification and the above drawings of the present invention, the term "threaded fit" or its variation means: a connection and fit mode that uses the thread structure of a threaded part (such as a bolt, nut 22 or stud, etc.) to connect two or more parts together so that they can be relatively fixed and can be disassembled when needed. Through the mutual screwing of the internal thread and the external thread, a tight fitting connection is achieved with parameters such as the thread profile, pitch, diameter, etc., and different degrees of tightening force and sealing can be provided according to different use requirements.

[0066] In the claims, specification and the above drawings of the present invention, the term "clearance fit" or its variations means: a fit with a clearance (including a minimum clearance equal to zero). In this case, the size of the hole is always larger than the size of the matching shaft, and after the hole and the shaft are assembled, there is a certain clearance between the two, so that the shaft can move relatively freely in the hole.

[0067] In the claims, specification and the above-mentioned drawings of the present invention, the term "butt fit" or its variation means: a way of fitting in which the ends or edges of two or more parts are connected and tightly fitted to each other so that they are precisely matched in terms of position, shape, etc. to achieve specific functional requirements or form a complete structure.

[0068] Example

[0069] The embodiment of the present invention relates to a bicycle, which includes a frame and a wheel set. The frame adopts a conventional structure in the art, and its material can be a metal material or a carbon fiber material. The wheel set is one aspect of the bicycle involved in the embodiment of the present invention, which will be described in detail below. The wheel set is installed on the frame in a conventional manner, and together with other accessories such as a conventional transmission system and a brake system, it constitutes a complete bicycle.

[0070] Reference Figure 1 , which shows the structure of a wheel set involved in an embodiment of the present invention, the wheel set includes a rim 20, a hub 50 and a plurality of spokes 10, wherein the spokes 10 are connected to the rim 20 using a spoke-rim connection structure as one aspect of a bicycle involved in an embodiment of the present invention, and the spokes 10 are connected to the hub 50, and the hub 50 is connected to the frame, so that the wheel set is mounted on the frame. The above-mentioned spoke-rim connection structure and the structure of connecting the spokes 10 to the hub 50 will be described in detail below.

[0071] It is necessary to point out that due to the existence of numerous rotating structures and rotational movements, the present specification and claims use a large number of axial, radial and circumferential directions to define positions and movements. For different components, the axial, radial and circumferential directions may not be the same, and the directions shown in the drawings and described in the specification shall prevail. Figure 1In the figure, the rim 20 itself is in a circular ring shape, the hub 50 is located at its center, the axial direction is the extension direction of the hub 50, the radial direction is the direction from the rim 20 to the hub 50, and the circumferential direction is the annular direction of the rim 20 itself.

[0072] The above-mentioned spoke rim connection structure will first be described below.

[0073] Reference Figure 2 , Figure 3 and Figure 6 The end side wall of the spoke 10 is provided with a threaded portion 11, and a first anti-rotation portion 12 is provided at the end of the end; the wheel rim 20 is provided with a receiving cavity 21 evenly arranged along the circumferential direction, and a nut 22 suitable for threaded cooperation with the threaded portion 11 is installed in the receiving cavity 21; the receiving cavity 21 has an opening facing the inner side of the wheel rim 20 along the radial direction of the wheel rim 20 to form a mounting hole 213 for inserting the spoke 10; the nut 22 is slidably matched with the receiving cavity 21 along its axial direction, and is suitable for abutting and cooperating with a first limiting wall 211 and a second limiting wall 212 provided in the receiving cavity 21 and opposite to each other in the axial direction to limit the sliding range ; The first limiting wall 211 is close to the mounting hole 213, and the second limiting wall 212 is away from the mounting hole 213 and is provided with a second stop portion 215 facing the nut 22; the first stop portion 12 is suitable for anti-rotation cooperation with the second stop portion 215 to limit the axial rotation of the spoke 10, and after the threaded portion 11 is screwed to the nut 22 and before the first stop portion 12 forms a anti-rotation cooperation with the second stop portion 215, the axial position of the nut 22 in the accommodating cavity 21 is configured to be suitable for straightening the spoke 10 so that the first stop portion 12 is aligned with the second stop portion 215.

[0074] Specifically, first refer to Figure 6, which shows the structure of the spoke 10 as this embodiment. It should be understood that the structure of the end of the spoke 10 is different corresponding to different materials. For example, in this embodiment, the spoke 10 includes a strip-shaped spoke body 15 and metal parts fixedly arranged at both ends of the spoke body 15, wherein the spoke body 15 is made of carbon fiber material, and the metal parts fixedly arranged at both ends thereof are provided with external threads, wherein the external threads arranged at one end for connecting with the rim 20 form the threaded portion 11. In other embodiments, the spoke 10 can be made of metal material, in which case the external threads can be directly arranged at both ends of the spoke 10 without the need to arrange metal parts separately. In this embodiment, a metal part is arranged at the first end of the spoke body 15 in the axial direction, and the metal part is fixedly connected to the spoke body 15 as a whole. The fixing method of the two can make the spoke body 15 and the metal part form a fixed fit in both the axial direction and the circumferential direction, that is, the metal part will not fall off from the spoke body 15 in the axial direction, and will not rotate relative to the spoke body 15 in the circumferential direction. At the same time, a first anti-rotation portion 12 is provided at the end position of the first end of the spoke 10. The first anti-rotation portion 12 can be provided on a metal part or on the spoke body 15. If it is provided on the spoke body 15, the spoke body 15 needs to extend axially out of the metal part.

[0075] Among them, refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the second stop 215 is in the shape of a hole, and the first stop 12 is inserted into the second stop 215 and is limited by the second stop 215 in the circumferential direction to form a stop fit. For example, the second stop 215 can be set as a countersunk structure, and the hole of the second stop 215 is formed into a non-circular or angular shape, such as an elliptical or rectangular shape. In this embodiment, the second stop 215 is designed to be a square. At the same time, the first stop 12 is configured to be compatible with the second stop 215 as a protruding structure, which can be inserted into the second stop 215, and its shape is compatible with the shape of the second stop 215, so that after the first stop 12 is inserted into the second stop 215, the spoke 10 cannot rotate around its axis. The first stop part 12 and the second stop part 215 are designed as a hole-shaft stop structure, and the stop effect is reliable. At the same time, compared with other shapes, the hole-shaped second stop part 215 is easier to guide the first stop part 12 to align and insert, thereby improving the success rate of assembly.

[0076] Furthermore, the second anti-rotation portion 215 is a through hole. The second anti-rotation portion 215 is designed as a through hole, and the structure of the through hole allows the first anti-rotation portion 12 to extend from the second anti-rotation portion 215. Compared with the structure of the countersunk hole, the length design of the spoke 10 can have more redundant space, and at the same time, there can be more adjustment space when adjusting the tension of the spoke 10.

[0077] Reference Figure 2 and Figure 3 The wheel rim 20 includes a wheel rim body 23, a first embedded part 24 and a second embedded part 25; the first embedded part 24 and the second embedded part 25 are fixedly connected to each other and are both fixedly arranged on the wheel rim body 23, and cooperate to form the accommodating cavity 21; the first limiting wall 211 and the mounting hole 213 are arranged on the first embedded part 24; the second limiting wall 212 and the second stop 215 are arranged on the second embedded part 25; the wheel rim body 23 is provided with a through hole 231 corresponding to the mounting hole 213.

[0078] Among them, refer to Figure 1 The wheel rim body 23 is annular and can be made of carbon fiber or metal. In the brake edge structure of the wheel rim body 23, a plurality of through holes 231 are evenly arranged along the circumference of the wheel rim body 23. Corresponding to the positions of the through holes 231, a receiving cavity 21 formed by the cooperation of the first embedded part 24 and the second embedded part 25 is provided. Figure 4 and Figure 5 , the first embedded part 24 is located below the second embedded part 25 in the axial direction, the interior of the first embedded part 24 is hollow, the axial top end thereof is open, and an external thread is provided on the outer peripheral surface of the axial top end, the second embedded part 25 is provided with an internal thread adapted to the external thread of the first embedded part 24, and can be screwed and fixed to the top end of the first embedded part 24 to close the top end opening of the first embedded part 24. The axial bottom end of the first embedded part 24 is also open and forms a mounting hole 213. The mounting hole 213 extends in the axial direction, and the portion of the accommodating cavity 21 other than the mounting hole 213 forms a sliding cavity 214. Therefore, the first embedded part 24 can be divided into a protruding structure where the mounting hole 213 is provided and a main body portion that forms the main part of the first embedded part 24, wherein the outer diameter of the portion of the first embedded part 24 where the mounting hole 213 is provided is smaller than the outer diameter of the main body portion of the first embedded part 24, and with reference to Figure 2 and Figure 3, the position of the first embedded part 24 where the mounting hole 213 is arranged just corresponds to the position of the through hole 231 on the wheel rim body 23. At the same time, the outer surface of the main part of the first embedded part 24 is a polygonal shape with edges, which can improve the fixing and matching effect of the first embedded part 24 with the wheel rim body 23 in the circumferential direction when the first embedded part 24 is fixed to the wheel rim body 23. The second embedded part 25 is provided with the second stopper 215 at the middle position of the bottom wall of the second limiting wall 212. In this embodiment, the second stopper 215 is a square through hole. In this embodiment, the split design of the wheel rim 20 facilitates the molding of the accommodating cavity 21, reduces the difficulty of processing and manufacturing, and can easily place the nut 22 into the accommodating cavity 21. In addition, it is also convenient to select different materials. For example, the first embedded part 24 and the second embedded part 25 can use materials that are more suitable for processing complex shapes or have specific functions, while the wheel rim body 23 can use materials that focus more on lightness or strength to achieve optimal configuration of materials.

[0079] Reference Figure 2 , Figure 4 and Figure 5 A nut 22 is installed in the accommodating cavity 21. The central part of the nut 22 forms a through hole with an internal thread. The nut 22 can form a threaded fit with the threaded portion 11 provided at the end of the spoke 10. The nut 22 is provided with a plug-in portion 221 connected to the internal thread in the axial direction thereof; the plug-in portion 221 is inserted into the mounting hole 213 and always maintains a clearance fit with the mounting hole 213 within the sliding range of the nut 22; the spoke 10 is suitable for passing through the plug-in portion 221 along its axial direction to be threadedly fitted with the nut 22. In addition, a guide slope 222 is provided on the inner edge of the free end of the plug-in portion 221, and the inner diameter of the guide slope 222 gradually increases from the inside to the outside along the axial direction of the nut 22. In addition, the part of the nut 22 located in the sliding cavity 214 is a nut body 223, and the outer diameter of the nut body 223 is smaller than the inner diameter of the sliding cavity 214.

[0080] Reference Figure 2 The first limiting wall 211 is arranged in the sliding cavity 214, and the inner diameter of the first limiting wall 211 gradually decreases from the inside to the outside along the axial direction of the nut 22; the nut body 223 is provided with a first abutting wall 224 for abutting and cooperating with the first limiting wall 211, and the outer diameter of the first abutting wall 224 gradually increases from the inside to the outside along the axial direction of the nut 22 and is adapted to the shape and size of the first limiting wall 211.

[0081] Specifically, refer to Figure 2 , Figure 3 , Figure 4 and Figure 5, a first limiting wall 211 and a second limiting wall 212 are provided in the accommodating cavity 21, which are opposite to each other in the axial direction, wherein the second limiting wall 212 is the bottom wall of the second embedded part 25, and the second limiting wall 212 is a planar structure and is perpendicular to the axial direction of the nut 22. The first limiting wall 211 is provided in the sliding cavity 214 of the accommodating cavity 21, and the second limiting wall 212 is an inclined conical structure. The nut 22 is provided with a second abutting wall 225 facing the second limiting wall 212, and a first abutting wall 224 matching the shape of the first limiting wall 211. Figure 4 The nut 22 is provided with an axially extending plug-in portion 221 at the lower axial side thereof. The plug-in portion 221 can be inserted into the mounting hole 213 of the second embedded component 25, so that the nut 22 can slide back and forth in the axial direction. A guide slope 222 is also provided at the inner edge of the free end of the plug-in portion 221. The inner diameter of the guide slope 222 gradually increases from the inside to the outside along the axial direction of the nut 22. The portion where the accommodating cavity 21 is located is the inner portion, and the portion outside the accommodating cavity 21 is the outer portion. The structure gradually increases along the axial direction, that is, the free end of the plug-in portion 221 is gradually opened from the inside to the outside, which makes it easier for the end of the spoke 10 to be inserted into the nut 22.

[0082] In this embodiment, the nut 22 is provided with an inserting portion 221, and the inserting portion 221 is clearance-matched with the mounting hole 213, so that the nut 22 can maintain sliding in the axial direction, and the nut 22 can be conveniently operated to rotate from the position of the inserting portion 221. In addition, when the nut 22 is built into the accommodating cavity 21 and the nut 22 is still sliding in the axial direction, the inserting portion 221 is provided, which can conveniently guide the threaded portion 11 of the spoke 10 to enter the nut 22 in the correct direction and initially form a threaded connection with the internal thread of the nut 22. If the inserting portion 221 is not provided, when the nut 22 slides to a position away from the mounting hole 213, it is difficult to find the position of the internal thread of the nut 22 after the spoke 10 passes through the mounting hole 213, which will reduce the assembly efficiency. Since the plug-in portion 221 is disposed in the mounting hole 213, it is easy to be covered by the mounting hole 213. After the spoke 10 is inserted into the mounting hole 213, it is easy to misalign the hole of the plug-in portion 221. Therefore, a guiding inclined surface 222 can be provided to guide the end of the spoke 10 into the plug-in portion 221, thereby improving the assembly efficiency. In addition, the nut body 223 of the nut 22 slides axially in the sliding cavity 214 of the accommodating cavity 21, and the outer diameter of the nut body 223 is smaller than the inner diameter of the sliding cavity 214. The axial sliding of the nut 22 is limited by the clearance fit between the plug-in portion 221 and the mounting hole 213. The sliding cavity 214 plays a role in preventing the nut body 223 from deflecting. When the nut 22 is rotated, the nut body 223 may not contact the cavity wall of the sliding cavity 214, thereby reducing the resistance when the nut 22 is rotated, and further reducing the torsional stress on the spoke 10. At the same time, the abutment between the first limiting wall 211 and the first abutment wall 224 of the nut body 223 is designed to be a conical fitting structure, which can enable the position of the nut 22 to be further maintained in a centered state when abutting against the first limiting wall 211, thereby avoiding the position of the nut 22 from being offset relative to the axial direction of the mounting hole 213. At the same time, compared with the planar contact structure, the contact area can be further increased, and the stress can be dispersed, thereby improving the reliability and durability of the connection. Moreover, since the stress is dispersed, the wheel tension can be further increased, thereby improving the rigidity of the wheel set.

[0083] Reference Figure 2 , Figure 4 and Figure 5The nut 22 is provided with a first matching portion 226 at the free end of its plug-in portion 221 for mating with an assembly tool along the axial direction of the nut 22 to rotate the nut 22. The spoke 10 is provided with a second matching portion 13 for mating with an assembly tool along the axial direction to fix the spoke 10. In this embodiment, the first matching portion 226 and the second matching portion 13 are at least one group of grooves symmetrically arranged along the circumference of the nut 22 and the spoke 10, and the opening of the groove is radially toward the inner side of the rim 20 along the rim 20. Among them, the second matching portion 13 can be provided on the metal part of the spoke 10. The first matching portion 226 that cooperates with the assembly tool is provided on the nut 22, so that the nut 22 can be rotated using a special assembly tool, thereby improving assembly efficiency and operation convenience. At the same time, with the assembly tool, the precise control of the tightening torque of the nut 22 can be achieved, thereby more accurately controlling the tension of the spoke 10. The second mating portion 13 on the spoke 10 is provided so that the spoke 10 can be fixed with a special assembly tool to prevent the spoke 10 from rotating when the nut 22 is turned, thereby ensuring the effectiveness of the anti-rotation fit and simplifying the assembly operation. The first mating portion 226 and the second mating portion 13 are designed as circumferentially symmetrical grooves. The groove structure is simple to process, has low cost, and has good versatility in cooperation with the assembly tool. The circumferentially symmetrically arranged grooves make the force and torque applied by the assembly tool more evenly balanced, avoiding deformation or damage of parts due to unilateral force.

[0084] Reference Figure 6 , Figure 7 and Figure 8 , the other end of the spoke 10 relative to the threaded portion 11 is provided with a connecting portion 14, and the connecting portion 14 is screwed and fixed with the hub 50 or snap-fitted along its axial direction. In this embodiment, the spoke 10 is connected to the hub 50 by a threaded connection. Specifically, a threaded hole 51 for screwing with the connecting portion 14 of the spoke 10 is provided on the hub 50, and an external thread is also provided on the connecting portion 14 of the spoke 10. When assembling the spoke 10, the connecting portion 14 of the spoke 10 can be screwed to the threaded hole 51 of the hub 50 first. Since the threaded hole 51 on the hub 50 is a through hole, the connecting portion 14 of the spoke 10 can be continuously rotated to an appropriate position without being restricted. Therefore, when the spoke 10 is firmly connected to the hub 50, the spoke 10 can still rotate around its axis relative to the hub 50. After that, the threaded portion 11 of the spoke 10 is passed through the through hole 231 of the rim body 23 and into the plug-in portion 221 of the nut 22. At this time, the spoke 10 will be bent and deformed to a certain extent, but can still be aligned with the through hole with internal threads of the nut 22. Then, the spoke 10 is fixed in the circumferential direction by an assembly tool, and the nut 22 is rotated in the circumferential direction to tighten the spoke 10 and fix the spoke 10 to the rim 20.

[0085] As one aspect of the embodiment of the present invention, the spoke rim connection structure is used to connect the spoke 10 to the rim 20, which can facilitate the adjustment of the tension of the spoke 10 and ensure the stability of the adjustment of the tension of the spoke 10. In the spoke rim connection structure, a threaded portion 11 and a first anti-rotation portion 12 are provided on the spoke 10, a receiving cavity 21 is provided in the rim 20, and an axially sliding nut 22 is installed in the receiving cavity 21. The end of the spoke 10 can be inserted into the receiving cavity 21 through the mounting hole 213 and form a threaded connection with the nut 22 in the receiving cavity 21. In the process of locking the nut 22, the spoke 10 needs to be fixed in the circumferential direction, and then the nut 22 is rotated so that the nut 22 can approach the first limiting wall 211 of the receiving cavity 21 in the axial direction, until the nut 22 is tightly abutted against the first limiting wall 211, and the spoke 10 is tightened and fixed on the rim 20. Among them, a second stop 215 is provided on the second limiting wall 212 of the accommodating cavity 21, and a circumferential stop fit can be formed between the first stop 12 and the second stop 215, so that after the spoke 10 is assembled to the rim 20, the rotation of the spoke 10 around its own axis is effectively limited, thereby improving the situation of torsional deformation of the spoke 10 when subjected to force, reducing the torsional stress of the spoke 10, and then improving the tension transmission efficiency, which can effectively increase the wheel tension, reduce fatigue damage of the spoke 10, extend the service life of the spoke 10, and improve the durability of the wheel set. In addition, by adjusting the tightening degree of the nut 22, the tension of the spoke 10 can be easily and accurately adjusted, and because the nut 22 is directly connected to the threaded portion 11 of the spoke 10, the adjustment of the nut 22 can be directly transmitted to the spoke 10 through the threaded connection structure, which can greatly improve the efficiency and stability of tension transmission compared to the limited fit method. Furthermore, since the first anti-rotation portion 12 of the spoke 10 and the second anti-rotation portion 215 of the rim 20 form an anti-rotation fit, the spoke 10 has been fixed in the circumferential direction. Therefore, when adjusting the tension of the spoke 10 by rotating the nut 22, the set tension value of the spoke 10 can be well maintained to prevent the tension from changing due to vibration or looseness during use. However, since the second anti-rotation portion 215 is provided on the second limiting wall 212 of the accommodating cavity 21, the first anti-rotation portion 12 of the spoke 10 needs to accurately form an anti-rotation fit with the second anti-rotation portion 215 during the assembly process. When the spoke 10 is assembled to the rim 20, it is usually not straightened. After being inserted into the mounting hole 213, the spoke 10 will still be bent to a certain extent. Obviously, the bent spoke 10 cannot achieve accurate fit between the first anti-rotation portion 12 and the second anti-rotation portion 215. To this end, in the present technical solution, the nut 22 is configured to be slidable in the axial direction, and at the same time, the sliding range of the nut 22 is limited by the cooperation of the first limiting wall 211 and the second limiting wall 212 .In the initial assembly stage, the threaded portion 11 at the end of the spoke 10 is just inserted into the mounting hole 213 and forms a preliminary threaded connection with the nut 22. At this time, the spoke 10 will push the nut 22. Under normal circumstances, the nut 22 will be pushed to a position against the second limiting wall 212. Then, during the rotation of the nut 22, the spoke 10 will gradually straighten, and the threaded portion 11 and the nut 22 will have more threaded matching parts. The first stop portion 12 set at the end of the spoke 10 will gradually be guided to a position aligned with the second stop portion 215 until the first stop portion 12 is exposed from the nut 22. At this time, the spoke 10 has been straightened, and the nut 22 continues to be rotated, and the first stop portion 12 can accurately match the second stop portion 215 to form a stop connection. Through this two-stage assembly method, in stage one, the nut 22 is used to slide axially to smoothly form a threaded connection with the nut 22 and straighten the spoke 10. In stage two, the spoke 10 is straightened and aligned with the second stop 215. The nut 22 is then rotated to tighten the spoke 10, thereby ensuring the orderliness and reliability of the assembly process of the spoke 10, and effectively ensuring the accurate fit between the first stop 12 and the second stop 215, which can further improve the torsional stress on the spoke 10 and thus increase the wheel tension.

[0086] In addition, refer to Figures 9 to 11 The embodiment of the present invention also relates to a spoke rim assembly tool, which is used to assemble the spoke 10 in the spoke rim connection structure to the rim 20, and includes a rotating wrench 30 and a stop wrench 40. In addition, the rotating wrench 30 is provided with a hollow first extension rod 32, and the first docking portion 31 is provided at the end of the first extension rod 32; the stop wrench 40 is provided with a second extension rod 42, the second extension rod 42 is suitable for being placed in the first extension rod 32, and the second docking portion 41 is provided at the end of the second extension rod 42.

[0087] Specifically, both the rotating wrench 30 and the anti-rotation wrench 40 are provided with wide operating parts arranged symmetrically in the circumferential direction, and the operating parts enable the operator to conveniently apply force to the rotating wrench 30 and the anti-rotation wrench 40 in the circumferential direction. A first extension rod 32 extending in the axial direction is provided in the middle position of the operating part of the rotating wrench 30. The first extension rod 32 is in the shape of a hollow groove, and its opening faces one side, thereby forming a receiving groove 33. A first docking part 31 adapted to the first matching part 226 of the nut 22 is provided at the free end position of the first extension rod 32. Since the first matching part 226 is a groove structure, the first docking part 31 is correspondingly a convex structure. A second extension rod 42 extending in the axial direction is provided in the middle position of the operating part of the anti-rotation wrench 40. The second extension rod 42 is also in the shape of a hollow groove, and its opening faces one side. A second docking portion 41 adapted to the second matching portion 13 of the spoke 10 is provided at the free end of the second extension rod 42. Since the second matching portion 13 is a groove structure, the second docking portion 41 is a convex structure correspondingly. The groove width of the receiving groove 33 of the first extension rod 32 is roughly adapted to the width of the second extension rod 42, so that the second extension rod 42 can be placed in the receiving groove 33 of the first extension rod 32. At the same time, the groove structure of the second extension rod 42 allows the spoke 10 to be placed in the second extension rod 42, so that the rotating wrench 30 and the anti-rotation wrench 40 can make way for the spoke 10 during assembly.

[0088] The spoke rim assembly tool can be used in conjunction with the spoke rim connection structure in the above technical solution to give full play to its advantages of simplified assembly and precise tension adjustment. The rotating spanner 30 and the anti-rotation spanner 40 are designed as a sleeve structure that can be nested together for use. The sleeve structure allows the rotating spanner 30 and the anti-rotation spanner 40 to be integrated together, with a compact structure and convenient operation. At the same time, the sleeve structure allows the operator to control the rotating spanner 30 and the anti-rotation spanner 40 at the same time, so as to achieve synchronous rotation of the nut 22 and fix the spoke 10, thereby improving assembly efficiency.

[0089] As one aspect of the embodiment of the present invention, the above-mentioned wheel set has improved overall performance due to the improvement of the connection structure, and has the effects of simplified assembly, improved torsional strength of the spokes 10 and improved wheel tension. At the same time, as another aspect of the embodiment of the present invention, the above-mentioned bicycle adopts the above-mentioned wheel set, and due to the improvement of the wheel set performance, the overall performance and user experience of the bicycle are improved.

[0090] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A spoke rim connection structure, characterized in that it comprises: The end side wall of the spoke (10) is provided with a threaded portion (11), and a first anti-rotation portion (12) is provided at the end of the end; The wheel rim (20) is provided with accommodating cavities (21) uniformly arranged along the circumferential direction, and a nut (22) suitable for threadedly matching with the threaded portion (11) is installed in the accommodating cavity (21); the accommodating cavity (21) has an opening radially toward the inner side of the wheel rim (20) to form a mounting hole (213) for inserting the spoke (10); the nut (22) is slidably matched with the accommodating cavity (21) along its axial direction, and is suitable for abutting and matching with a first limiting wall (211) and a second limiting wall (212) provided in the accommodating cavity (21) and opposite to each other in the axial direction to limit the sliding range; the first limiting wall (211) is close to the mounting hole (213), and the second limiting wall (212) is far away from the mounting hole (213) and is provided with a second anti-rotation portion (215) facing the nut (22); The first anti-rotation portion (12) is suitable for anti-rotation cooperation with the second anti-rotation portion (215) to limit the axial rotation of the spoke (10), and after the threaded portion (11) is screwed onto the nut (22) and before the first anti-rotation portion (12) forms an anti-rotation cooperation with the second anti-rotation portion (215), the axial position of the nut (22) in the accommodating cavity (21) is configured to be suitable for straightening the spoke (10) so that the first anti-rotation portion (12) is aligned with the second anti-rotation portion (215).

2. A spoke rim connection structure as claimed in claim 1, characterized in that: The nut (22) is provided with an inserting portion (221) connected to its internal thread in the axial direction; the inserting portion (221) is inserted into the mounting hole (213) and always maintains a clearance fit with the mounting hole (213) within the sliding range of the nut (22); the spoke (10) is suitable for passing through the inserting portion (221) along its axial direction to threadably fit with the nut (22).

3. A spoke rim connection structure as claimed in claim 2, characterized in that: A guiding slope (222) is provided on the inner edge of the free end of the plug-in portion (221), and the inner diameter of the guiding slope (222) gradually increases from the inside to the outside along the axial direction of the nut (22).

4. A spoke rim connection structure as claimed in claim 2, characterized in that: The mounting hole (213) extends along the axial direction of the nut (22), and the portion of the accommodating cavity (21) other than the mounting hole (213) forms a sliding cavity (214); the portion of the nut (22) located in the sliding cavity (214) is a nut body (223), and the outer diameter of the nut body (223) is smaller than the inner diameter of the sliding cavity (214).

5. A spoke rim connection structure as claimed in claim 4, characterized in that: The first limiting wall (211) is arranged in the sliding cavity (214), and the inner diameter of the first limiting wall (211) gradually decreases from the inside to the outside along the axial direction of the nut (22); the nut body (223) is provided with a first abutting wall (224) for abutting and cooperating with the first limiting wall (211), and the outer diameter of the first abutting wall (224) gradually increases from the inside to the outside along the axial direction of the nut (22) and is adapted to the shape and size of the first limiting wall (211).

6. A spoke rim connection structure as claimed in claim 5, characterized in that: The wheel rim (20) includes a wheel rim body (23), a first embedded part (24) and a second embedded part (25); the first embedded part (24) and the second embedded part (25) are fixedly connected to each other and are both fixedly arranged on the wheel rim body (23), and cooperate to form the accommodating cavity (21); the first limiting wall (211) and the mounting hole (213) are arranged on the first embedded part (24); the second limiting wall (212) and the second anti-rotation part (215) are arranged on the second embedded part (25); the wheel rim body (23) is provided with a through hole (231) corresponding to the mounting hole (213).

7. A spoke rim connection structure as claimed in claim 2, characterized in that: The nut (22) is provided at the free end of its plug-in portion (221) with a first matching portion (226) for mating with an assembly tool along the axial direction of the nut (22) to rotate the nut (22).

8. A spoke rim connection structure as claimed in claim 7, characterized in that: The spoke (10) is provided with a second matching portion (13) for abutting with an assembly tool along its axial direction to fix the spoke (10).

9. A spoke rim connection structure as claimed in claim 8, characterized in that: The first matching portion (226) and the second matching portion (13) are both at least one group of grooves symmetrically arranged along the circumference of the nut (22) and the spoke (10), and the openings of the grooves are radially toward the inner side of the rim (20) along the rim (20).

10. The spoke rim connection structure according to claim 1, characterized in that: The second anti-rotation portion (215) is hole-shaped, and the first anti-rotation portion (12) is inserted into the second anti-rotation portion (215) and is limited in the circumferential direction by the second anti-rotation portion (215) to form an anti-rotation fit.

11. A spoke rim connection structure as claimed in claim 10, characterized in that: The second anti-rotation portion (215) is a through hole.

12. A spoke rim assembly tool, used for assembling the spoke (10) in the spoke rim connection structure according to any one of claims 1 to 11 to a rim (20), characterized in that: It comprises a rotating wrench (30) and a non-rotating wrench (40); The rotating spanner (30) is provided with a first abutting portion (31) for abutting with the nut (22) in the axial direction and for a circumferentially anti-rotational engagement; the anti-rotation spanner (40) is provided with a second abutting portion (41) for abutting with the spoke (10) in the axial direction and for a circumferentially anti-rotational engagement.

13. A spoke rim assembly tool as claimed in claim 12, characterized in that: The rotating wrench (30) is provided with a hollow first extension rod (32), and the first docking portion (31) is provided at the end of the first extension rod (32); the anti-rotation wrench (40) is provided with a second extension rod (42), the second extension rod (42) is suitable for being placed in the first extension rod (32), and the second docking portion (41) is provided at the end of the second extension rod (42).

14. A wheel set, characterized in that: The invention comprises a wheel rim (20), a hub (50) and a plurality of spokes (10), wherein the spokes (10) are connected to the wheel rim (20) by adopting the spoke rim connection structure as claimed in any one of claims 1 to 11, and a connecting portion (14) is provided at the other end of the spoke (10) opposite to the threaded portion (11), and the connecting portion (14) is screwed and fixed to the hub (50) or snap-fitted along its axial direction.

15. A bicycle comprising a frame, characterized in that: The frame is equipped with the wheelset according to claim 14.

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