Secondary forming anti-internal-disengaging spoke

Abstract

The utility model belongs to the technical field of spokes, and provides a secondary forming anti-inner-falling spoke which comprises a strip body, sleeves are arranged on the left side and the right side of the strip body in a sleeved mode, and anti-inner-falling limiting blocks arranged on the outer wall of the strip body in a sleeved mode are integrally formed at the inner ends of the sleeves. Due to the arrangement that the second flow guide holes and the first flow guide holes are distributed in the strip body in a crossed and through mode, the flowing range of glue is enlarged, it is guaranteed that all the parts, connected with the sleeve, of the strip body can be fully glued, and the firmness of sleeve assembling is improved; the assembling rings and the positioning grooves are used in cooperation to achieve the effect that the positioning rings are accurately installed on the left side and the right side of the strip body, the positioning rings provide accurate positioning reference objects for the internal-disengagement-preventing limiting blocks in the secondary forming process, and secondary forming of the internal-disengagement-preventing limiting blocks between the positioning rings and the adjacent sleeves is facilitated; therefore, the assembly between the spoke and the sleeve is more accurate, and the problem that the sleeve falls off due to the fact that an existing secondary forming inner falling prevention spoke is prone to degumming is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of spokes and provides a secondary molded spoke that prevents inner separation. Background Art

[0002] Spokes are supporting components installed between the axle and the rim of the wheel. Spokes are used to maintain the same radial spacing at any position in the gap between the axle and the rim, so that the axle remains at the center of the circle, thus forming a complete spoke wheel frame. This type of wheel is commonly used on various bicycle wheels.

[0003] The existing spokes have the following technical problems: (i) The space between the symmetrical stepped sections on the left and right sides of the spokes and the inner wall of the sleeve is narrow, so it is difficult for glue to stay between the stepped sections and the inner wall of the sleeve, which makes it easy for glue to overflow, making it inconvenient to inject glue into the inner wall of the sleeve, resulting in the sleeve being loosely bonded to the left and right sides of the spokes, thereby reducing the stability between the spokes and the sleeve; (ii) Due to the weight of the vehicle body, the vehicle body exerts downward pressure on the wheel axle under the action of gravity, and the wheel axle exerts a downward pressure on the spokes, which causes the left and right sides of the spokes to slide along the inside of the sleeve, and the friction between the spokes and the sleeve generates heat to melt the spokes and the sleeve. The glue pre-applied between the spokes and the sleeve will cause the glue pre-applied between the spokes and the sleeve to come off, and the outer end of the sleeve will be held by the wheel ring, and the inner end of the sleeve will detach from the left and right sides of the spoke to the center of the spoke. The spokes on both sides lose the support of the sleeve, and the spokes on both sides fall off from the wheel ring and the axle respectively, which can easily cause the wheel to fall apart. Such unqualified spokes increase the danger of the wheel. (iii) In combination with the above-mentioned technical problems, since the glue cannot fully adhere the spokes to the sleeve, they are affected by external forces during use, which destroys the stability of the connection between the spokes and the sleeve and causes the sleeve to detach from the spokes. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and solve the problem that the prior secondary molded anti-inner-detachment spokes are easy to debond and cause the sleeve to fall off.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a secondary molded spoke to prevent inner separation, comprising a spoke body:

[0006] The left and right sides of the strip body are both sleeved with sleeves, and the inner ends of the sleeves are integrally formed with anti-inner-slip limit blocks sleeved on the outer wall of the strip body;

[0007] The outer walls of the left and right sides of the strip body are provided with a second step section and a first step section arranged on the inner wall of the adjacent sleeve in sequence from the inside to the outside, and a straight-line glue injection groove is provided at both upper and lower ends between the first step section and the adjacent second step section, and a first guide hole penetrating the interior of the strip body is provided between the inner walls of the two straight-line glue injection grooves adjacent to each other on the same side;

[0008] A mounting groove is provided at both the front and rear ends between the first step section and the adjacent second step section, and an arched elastic plug integrally formed with the inner wall of the sleeve is embedded in the mounting groove, and a second guide hole is provided between the inner walls of the two adjacent mounting grooves on the same side;

[0009] The second guide holes are arranged in a cross-intersecting manner with the adjacent first guide holes.

[0010] In a preferred technical solution of the utility model, an annular glue injection groove located outside the I-shaped glue injection groove is formed on the outer surface of the first step section, and the annular glue injection groove is connected to the inside of the adjacent assembly groove. The left and right ends of the strip body are integrally formed with a sealing sheet tightly attached to the outer end of the adjacent sleeve, and the sealing sheet is adjacent to the outer side of the annular glue injection groove. The left and right ends of the strip body are integrally formed with a reinforcing pin extending outward from the outer end of the adjacent sealing sheet, and the reinforcing pin is in a "T" shape.

[0011] In a preferred technical solution of the utility model, an edge slope is provided around the I-shaped glue injection groove, and the edge slope is inclined at an angle of twenty to thirty degrees on a side close to the I-shaped glue injection groove toward the first guide hole.

[0012] In a preferred technical solution of the utility model, the inner end of the anti-inner disengagement limit block is provided with a positioning ring inserted into the outer wall of the bar, and the left and right sides of the outer wall of the bar are provided with positioning grooves located on the inner walls adjacent to the positioning rings, and the inside of the positioning grooves is inlaid with assembly rings fixed on the inner walls of the adjacent positioning rings.

[0013] In a preferred technical solution of the present utility model, the diameter of the first step section is greater than the diameter of the second step section.

[0014] In a preferred technical solution of the utility model, a first connecting portion is integrally formed on the outer side of the outer surface of the sleeve on the left, and a second connecting portion is integrally formed on the outer side of the outer surface of the sleeve on the right.

[0015] Compared with the prior art, the utility model achieves the following beneficial effects:

[0016] The first step section and the second step section are provided on the left and right sides of the strip body, so that the sleeve can be conveniently assembled to the left and right sides of the strip body. The first guide hole and the second guide hole respectively cross and penetrate from the inside of the straight glue injection groove and the assembly groove to the inside of the strip body, and the glue can flow into the assembly groove and the annular glue injection groove along the straight glue injection groove, ensuring uniform glue injection and good glue diversion. This design can effectively prevent the problem of uneven glue injection during the injection process, avoid the generation of bubbles between the strip body and the sleeve, and improve the smoothness of glue injection and diversion. The second guide hole and the first guide hole are arranged in a cross-through distribution inside the strip body, which expands the flow range of the glue, ensures that all parts of the connection between the strip body and the sleeve can be fully glued, and improves the firmness of the sleeve assembly. The close fit between the spoke and the sleeve increases the overall sealing performance of the spoke, prevents the external environment from eroding the internal structure of the spoke, thereby greatly improving the strength of the sleeve assembly to the strip body, and enhancing the molding quality and durability of the spoke.

[0017] The positioning groove is arranged on the outer wall of the bar so that the assembly ring can fasten the positioning ring to the surface of the bar body. The assembly ring and the positioning groove are used together to accurately install the positioning ring to the left and right sides of the bar body. The positioning ring provides a reference for accurate positioning of the anti-inner disengagement limit block during the secondary molding process, which is convenient for the anti-inner disengagement limit block to be secondary molded between the positioning ring and the adjacent sleeve, making the assembly between the spoke and the sleeve more accurate, and improving the assembly accuracy of the secondary molding of the anti-inner disengagement limit block. The positioning ring provides a reference for the inner end of the anti-inner disengagement limit block. The locking ring is used to lock the sleeve against the locking nut and to lock the sleeve against the locking nut. The locking ring is used to lock the sleeve against the locking nut and to lock the sleeve against the locking nut. The locking ring is used to lock the sleeve against the locking nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is an assembly effect diagram of the straight-line glue injection groove of the utility model;

[0020] Figure 3 This is an assembly effect diagram of the arched elastic plug of the utility model;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the strip body of the utility model;

[0022] Figure 5 This is an assembly effect diagram of the first guide hole and the second guide hole of the utility model;

[0023] Figure 6 This is a cross-sectional assembly effect diagram of the first guide hole and the second guide hole of the utility model in the inner part of the strip body;

[0024] Figure 7 This is an assembly effect diagram of the assembly ring of the utility model.

[0025] In the figure: 1. strip body; 2. sleeve; 3. positioning ring; 4. anti-inner disengagement limit block; 5. assembly ring; 6. sealing sheet; 7. annular glue injection groove; 8. straight glue injection groove; 9. first guide hole; 10. edge inclined slope; 11. first step section; 12. second step section; 13. assembly groove; 14. arched elastic plug; 15. second guide hole; 16. first connecting part; 17. second connecting part; 18. reinforcement pin; 19. positioning groove. DETAILED DESCRIPTION

[0026] For example, see Figure 1-7 The utility model provides a technical solution: a secondary molded anti-inner-slip spoke, comprising a spoke 1: sleeves 2 are set in both the left and right sides of the spoke 1, and the inner ends of the sleeves 2 are integrally formed with anti-inner-slip limit blocks 4 that are set in the outer wall of the spoke 1; the outer walls of the left and right sides of the spoke 1 are sequentially provided with second step sections 12 and first step sections 11 placed on the inner walls of the adjacent sleeves 2 from the inside to the outside, and a straight-line glue injection groove 8 is provided at both the upper and lower ends between the first step section 11 and the adjacent second step section 12, and a first guide hole 9 that runs through the interior of the spoke 1 is provided between the inner walls of the two adjacent straight-line glue injection grooves 8 on the same side; the first step section 11 and the adjacent second step section 12 are sequentially provided with a second step section 12 and a first step section 11 that runs through the interior of the spoke 1; the first step section 11 and the adjacent second step section 12 are sequentially provided with a second step section 12 and a first step section 11 that runs through the interior of the spoke 1; the first step section 11 and the adjacent second step section 11 are sequentially provided with a second step section 1 ... Assembly grooves 13 are provided at both the front and rear ends between the step sections 12, and the interior of the assembly grooves 13 is inlaid with arched elastic plugs 14 integrally formed with the inner wall of the sleeve 2, and second guide holes 15 are provided between the inner walls of the two adjacent assembly grooves 13 on the same side; the second guide holes 15 and the adjacent first guide holes 9 are cross-connected; an annular glue injection groove 7 located outside the I-shaped glue injection groove 8 is provided on the outer surface of the first step section 11, and the I-shaped glue injection groove 8, the assembly groove 13, the first guide hole 9, the second guide hole 15, and the annular glue injection groove 7 are formed on the surface of the strip body 1 by mold forming or laser irradiation cutting.

[0027] Embodiment 2, further explained based on the above embodiment: the inner ends of the anti-inner disengagement limit blocks 4 are provided with positioning rings 3 inserted into the outer wall of the strip body 1, and positioning grooves 19 located on the inner walls of adjacent positioning rings 3 are opened on the left and right sides of the outer wall of the strip body 1, and assembly rings 5 ​​fixed on the inner walls of adjacent positioning rings 3 are inlaid inside the positioning grooves 19. The assembly rings 5 ​​are inserted into the positioning grooves 19 from the left and right ends of the strip body 1, so that the assembly rings 5 ​​insert the positioning rings 3 into the positioning grooves 19, the inner ends of the assembly rings 5 ​​are inclined at a forty-five degree angle, and the cross-section of the assembly rings 5 ​​presents a right triangle. The assembly rings 5 ​​are tightly embedded in the positioning grooves 19, and the assembly rings 5 ​​are firmly assembled in the positioning grooves 19, so as to achieve the effect of firmly installing the positioning rings 3 on the left and right sides of the strip body 1.

[0028] Embodiment 3, further explained according to the above embodiment: the first guide hole 9 and the second guide hole 15 are respectively connected from the inside of the straight-line glue injection groove 8 and the assembly groove 13 to the inside of the strip body 1, and an edge inclined slope 10 is provided around the straight-line glue injection groove 8. The side of the edge inclined slope 10 close to the straight-line glue injection groove 8 is inclined at an angle of 20 to 30 degrees in the direction close to the first guide hole 9. The edge inclined slope 10 forms a surrounding slope around the straight-line glue injection groove 8. The edge inclined slope 10 is used in conjunction with the straight-line glue injection groove 8 to form a first step on the outer wall of the left and right sides of the strip body 1. The first step section 11 and the second step section 12 form an "inner concave surface" annular structure, the diameter of the first step section 11 is larger than the diameter of the second step section 12, the first step section 11 and the second step section 12 are of different diameters on the left and right sides of the strip body 1, and a diameter difference is formed between the first step section 11 and the second step section 12. The glue injection device uses a glue injection needle to inject glue into the edge inclined slope 10 between the first step section 11 and the second step section 12, and the glue flows in the direction of the middle of the strip body 1 along the diameter difference between the first step section 11 and the second step section 12 on the same side of the strip body 1. , the glue flows into the straight glue injection groove 8 along the edge inclined slope 10, the glue gradually fills the straight glue injection groove 8 and overflows to the surface of the first step section 11 and the second step section 12, the glue is evenly applied to the surface of the first step section 11 and the second step section 12, the glue will flow into the second guide hole 15 along the first guide hole 9 inside the straight glue injection groove 8, the glue will cross flow at the cross intersection between the first guide hole 9 and the second guide hole 15 on the same vertical plane, the glue will flow out from the second guide hole 15 to the corresponding assembly groove 13, the annular glue injection groove 7 The second guide hole 15 and the first guide hole 9 are arranged in a cross-shaped manner inside the strip body 1 to expand the flow range of the glue, ensure that all parts of the connection between the sleeve 2 and the strip body 1 can be fully glued, and improve the firmness of the assembly of the sleeve 2. This design can effectively prevent the problem of uneven glue injection, avoid the formation of bubbles between the strip body 1 and the sleeve 2, and improve the smoothness of glue injection and diversion.

[0029] Embodiment 4, further explained based on the above embodiment: the sleeve 2 is inserted into the first step section 11 and the second step section 12 on the left and right sides of the strip body 1 in sequence to a distance of about two centimeters from the adjacent positioning ring 3. The sleeve 2 will slide into the surface of the corresponding second step section 12 along the first step section 11. The provision of the first step section 11 and the second step section 12 can make it easier to insert the sleeve 2 from the left and right sides of the strip body 1. A distance of about two centimeters is reserved between the sleeve 2 and the adjacent positioning ring 3 for secondary molding of the anti-inner disengagement limit block 4 on the surface of the strip body 1. The first step section 11 and the second step section 12 on the left and right sides of the strip body 1 can facilitate the assembly of the sleeve 2 to the left and right sides of the strip body 1. The inner wall of the sleeve 2 contacts the glue on the surfaces of the first step section 11 and the second step section 12 on the same side of the strip body 1.

[0030] Embodiment 5, further explained according to the above embodiment: when the sleeve 2 is pushed into the left and right sides of the strip body 1, the sleeve 2 pushes the arched elastic plug 14 into the inside of the assembly groove 13, and the arched elastic plug 14 contacts the glue inside the assembly groove 13. The arched shape of the surface of the arched elastic plug 14 can provide more accommodation space for the glue. The glue is in full contact with the surface of the arched elastic plug 14 inside the assembly groove 13, and the glue adheres the arched elastic plug 14 to the corresponding assembly groove 13. The sleeve 2 relies on the arched elastic plug 14 to keep it tightly inserted in the left and right sides of the strip body 1. At the position of the first step section 11 and the second step section 12 of the edge, the glue overflows from the annular glue injection groove 7 to fill the position between the inner wall of the sleeve 2 and the outer wall of the strip body 1, and as time goes by, the glue gradually solidifies between the inner wall of the sleeve 2 and the outer wall of the strip body 1 to complete the step of firmly assembling the sleeve 2. The close fit between the spoke and the sleeve 2 increases the overall sealing performance of the spoke, prevents the external environment from corroding the internal structure of the spoke, thereby greatly improving the strength of the assembly of the sleeve 2 to the strip body 1, and enhancing the molding quality and durability of the spoke.

[0031] Embodiment 6, further explained according to the above embodiment: the positioning groove 19 is arranged on the outer wall of the strip body 1 so that the assembly ring 5 can fasten the positioning ring 3 to the surface of the strip body 1, and the assembly ring 5 and the positioning groove 19 are used together to accurately install the positioning ring 3 to the left and right sides of the strip body 1, and the positioning ring 3 provides a reference for accurate positioning of the anti-inner disengagement limit block 4 during the secondary molding process, so that the anti-inner disengagement limit block 4 is convenient for secondary molding between the positioning ring 3 and the adjacent sleeve 2. After the secondary molding, the anti-inner disengagement limit block 4 contacts the adjacent sleeve 2 and the positioning ring 3, so that The assembly between the spokes and the sleeve 2 is more precise, which improves the assembly accuracy of the secondary molding of the anti-inner disengagement limit block 4. The positioning ring 3 provides additional supporting force for the inner end of the anti-inner disengagement limit block 4 to limit the inward displacement of the anti-inner disengagement limit block 4. The positioning ring 3 also improves the firmness of the secondary molding of the anti-inner disengagement limit block 4 on the surface of the strip body 1. The anti-inner disengagement limit block 4 uses the adjacent positioning ring 3 as a reference force point to support the sleeve 2. The anti-inner disengagement limit block 4 prevents the sleeve 2 from sliding along the left and right sides of the strip body 1 to the middle of the strip body 1, and the anti-inner disengagement limit block 4 realizes the function of preventing the sleeve 2 from being supported internally.

[0032] Embodiment 7, further explained according to the above embodiment: both left and right ends of the strip body 1 are integrally formed with a sealing sheet 6 that is tightly attached to the outer end of the adjacent sleeve 2, the sealing sheet 6 is adjacent to the outer side of the annular glue injection groove 7, and both left and right ends of the strip body 1 are integrally formed with a reinforcing pin 18 that extends outward from the outer end of the adjacent sealing sheet 6, and the reinforcing pin 18 is in a "T" shape. The sealing sheet 6 is integrally formed at the outer end of the adjacent sleeve 2 at the left and right ends of the strip body 1, and the sealing sheet 6 limits the outer end of the sleeve 2. The "T" shape design of the reinforcing pin 18 limits the outward movement of the sealing sheet 6 at the left and right ends of the strip body 1 , to ensure that the sealing sheet 6 blocks the left and right ends of the strip body 1, the sealing sheet 6 is used to limit the sleeve 2 from sliding outward along the left and right sides of the strip body 1 and prevent the glue from overflowing along the left and right ends of the strip body 1 between the inner wall of the sleeve 2 and the outer wall of the strip body 1. The outer side of the outer surface of the left sleeve 2 is integrally formed with a first connecting portion 16, and the outer side of the outer surface of the right sleeve 2 is integrally formed with a second connecting portion 17. The left and right sleeves 2 are respectively integrally formed with the first connecting portion 16 and the second connecting portion 17, so that the connection between the spokes and other components is more stable and firm, and the sleeves are prevented from degumming and falling off.

Claims

1. A secondary molded spoke that prevents inner separation, comprising a spoke body (1), characterized in that: The left and right sides of the strip body (1) are both sleeved with sleeves (2), and the inner ends of the sleeves (2) are integrally formed with anti-inner disengagement limit blocks (4) sleeved on the outer wall of the strip body (1); The outer walls of the left and right sides of the strip body (1) are provided with a second step section (12) and a first step section (11) which are arranged on the inner wall of the adjacent sleeve (2) in sequence from the inside to the outside, and a straight-line glue injection groove (8) is provided at both upper and lower ends between the first step section (11) and the adjacent second step section (12), and a first guide hole (9) penetrating the interior of the strip body (1) is provided between the inner walls of the two straight-line glue injection grooves (8) adjacent to each other on the same side; A mounting groove (13) is provided at both the front and rear ends between the first step section (11) and the adjacent second step section (12), an arched elastic plug (14) integrally formed with the inner wall of the sleeve (2) is embedded in the mounting groove (13), and a second guide hole (15) is provided between the inner walls of two adjacent mounting grooves (13) on the same side; The second flow guide holes (15) and the adjacent first flow guide holes (9) are arranged in a cross-shaped and intersecting manner.

2. The secondary molded spoke for preventing inner separation according to claim 1, characterized in that: The outer surface of the first step section (11) is provided with an annular glue injection groove (7) located outside the straight glue injection groove (8), the annular glue injection groove (7) is connected to the inside of the adjacent assembly groove (13), the left and right ends of the strip body (1) are integrally formed with a sealing sheet (6) tightly attached to the outer end of the adjacent sleeve (2), the sealing sheet (6) is adjacent to the outer side of the annular glue injection groove (7), and the left and right ends of the strip body (1) are integrally formed with a reinforcing pin (18) extending outward from the outer end of the adjacent sealing sheet (6), and the shape of the reinforcing pin (18) is "T"-shaped.

3. The secondary molded anti-inner-stripping spoke according to claim 1, characterized in that: An edge inclined slope (10) is provided around the straight-line glue injection groove (8), and the edge inclined slope (10) is inclined at an angle of 20 to 30 degrees on a side close to the straight-line glue injection groove (8) toward a direction close to the first guide hole (9).

4. The secondary molded anti-inner-stripping spoke according to claim 1, characterized in that: The inner end of the anti-inner disengagement limit block (4) is provided with a positioning ring (3) inserted into the outer wall of the strip body (1), and the left and right sides of the outer wall of the strip body (1) are provided with positioning grooves (19) located on the inner wall of the adjacent positioning ring (3), and the inside of the positioning groove (19) is inlaid with an assembly ring (5) fixed on the inner wall of the adjacent positioning ring (3).

5. The secondary molded anti-inner-stripping spoke according to claim 1, characterized in that: The diameter of the first step section (11) is greater than the diameter of the second step section (12).

6. The secondary molded anti-inner-stripping spoke according to claim 1, characterized in that: A first connection portion (16) is integrally formed on the outer surface of the sleeve (2) on the left, and a second connection portion (17) is integrally formed on the outer surface of the sleeve (2) on the right.

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