Isolation mounting structure of magnesium alloy and iron frame

Abstract

The utility model discloses a magnesium alloy and iron frame isolation installation structure which comprises a frame, the frame comprises a connecting cylinder, a handlebar fixing cylinder is formed at the upper end of the connecting cylinder, an inner wind shielding connecting plate is formed on the inner side face of the handlebar fixing cylinder, the inner wind shielding connecting plate is in a square shape, and the inner wind shielding connecting plate is connected with the connecting cylinder. An isolation cushion block is buckled on a plate, close to the inner side, of the inner windshield connecting plate, the inner windshield connecting plate is connected with the inner windshield through a bolt, side wings in a rectangular frame shape are formed on the two sides of the connecting cylinder, reinforcing plates are connected into the side wings, the reinforcing plates are connected to the two sides of the connecting cylinder, and the connecting cylinder is connected with the inner windshield connecting plate through bolts. Due to the fact that the isolation cushion block is arranged between the frame and the lower front wall, the frame is prevented from making direct contact with the lower front wall, meanwhile, the isolation cushion block can conduct buffering between the frame and the lower front wall, and abnormal sound generated during vibration is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame technology, specifically to an isolation and installation structure between a magnesium alloy and an iron vehicle frame. Background Technology

[0002] Ordinary electric bicycles are made of carbon steel for the frame and front fairing, which is inexpensive but heavy and difficult to handle. Therefore, in order to improve the handling of electric bicycles, our company has improved the material of the front fairing by choosing magnesium alloy to manufacture it. This reduces the weight while ensuring the strength of the front fairing, thus improving the handling of the electric bicycle.

[0003] The magnesium alloy front fascia is bolted to the iron frame. However, due to the difference in electrical charge between magnesium alloy and iron, the magnesium alloy is prone to corrosion. Furthermore, the direct contact between the magnesium alloy and iron can cause abnormal noises during vehicle vibrations. Therefore, this isolated mounting structure was designed to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide an isolation installation structure between magnesium alloy and iron frame. By setting an isolation pad between the frame and the lower front bulkhead, direct contact between the frame and the lower front bulkhead is avoided. At the same time, the isolation pad can buffer between the frame and the lower front bulkhead, reducing abnormal noises generated during vibration.

[0005] This utility model provides the following technical solution: a magnesium alloy and iron frame isolation installation structure, including a frame, characterized in that: the frame includes a connecting cylinder, the upper end of the connecting cylinder is formed with a handlebar fixing cylinder, the upper end of the handlebar fixing cylinder is fixed with a windshield mounting seat for installing an inner windshield, an inner windshield connecting plate is formed on the inner side of the handlebar fixing cylinder, the inner windshield connecting plate is U-shaped, an isolation pad is fastened to the inner side of the inner windshield connecting plate, the cross-section of the isolation pad is U-shaped, and the isolation pad is inserted into the inner windshield connecting plate. On the plate, the inner windshield connecting plate is connected to the inner windshield by bolts. The two sides of the connecting cylinder are formed with rectangular frame side wings. The side wings are connected with reinforcing plates. The reinforcing plates are connected to both sides of the connecting cylinder. The side edges of the reinforcing plates are also fastened with isolation pads. The reinforcing plates have threaded holes. The front side of the inner windshield is connected to the upper front cover. The lower end of the upper front cover is connected to the lower front cover. The lower front cover is formed with a frame connecting column. The frame connecting column and the reinforcing plate are connected by bolts. The isolation pads are clamped in the reinforcing plate and the frame connecting column.

[0006] To connect the inner windshield and the upper front enclosure, the end face of the inner windshield is provided with a first upper front enclosure connection hole and a second upper front enclosure connection hole. Bolts are connected to both the first and second upper front enclosure connection holes. An inner windshield connecting post is formed on the inner side of the upper front enclosure, corresponding to the first and second upper front enclosure connection holes. A groove is formed in the center of the inner windshield connecting post, and threads are formed on the inner wall of the groove. The bolt passes through the first or second upper front enclosure connection hole and is threaded to the inner windshield connecting post, connecting the inner windshield and the upper front enclosure. A washer is clamped between the bolt and the inner windshield connecting post.

[0007] To connect the upper front fascia and the lower front fascia together, a lower front fascia connecting post is formed on the lower end of the upper front fascia, and a third upper front fascia connecting seat is formed on the upper end of the lower front fascia. The cross-section of the third upper front fascia connecting seat is I-shaped, and an isolation pad is also fastened to the third upper front fascia connecting seat. The isolation pad is clamped between the third upper front fascia connecting seat and the lower front fascia connecting post, and the third upper front fascia connecting seat and the lower front fascia connecting post are connected by bolts.

[0008] To connect the lower front bulkhead and the base plate together, a base plate connecting post is formed at the lower end of the lower front bulkhead. The base plate is bolted to the base plate connecting post. A third lower front bulkhead connecting seat is formed on the end face of the base plate. The cross-section of the third lower front bulkhead connecting seat is I-shaped. An isolation pad is fastened to the third lower front bulkhead connecting seat. The isolation pad is clamped between the third lower front bulkhead connecting seat and the base plate connecting post. The third lower front bulkhead connecting seat and the base plate connecting post are bolted together.

[0009] To connect the side wing and the side strip, an outer connecting plate is formed on the outer end face of the side wing, and a side strip is connected to the outer connecting plate. A second frame connecting block is formed on one end of the side strip, and the second frame connecting block is connected to the outer connecting plate by bolts.

[0010] To connect the side strip and the lower front fascia, a first lower front fascia connecting seat and a second lower front fascia connecting seat are formed on the inner side of the side strip. Two first side strip connecting posts are formed on the lower front fascia. The two lower front fascia connecting posts are respectively connected to the first lower front fascia connecting seat and the second lower front fascia connecting seat by bolts. The cross-section of the first lower front fascia connecting seat and the second lower front fascia connecting seat is I-shaped. The isolation pad is fastened to the first lower front fascia connecting seat and the second lower front fascia connecting seat. The side strip is also connected to the inner windshield. A side strip connecting plate is formed at the lower end of the inner windshield. The side strip connecting plate is connected to the first frame connecting block of the side strip by bolts.

[0011] In order to connect the frame and the side strip together, a bottom reinforcing rib is fixed on the bottom of the frame, and a first frame connecting block is formed on the end face of the side strip. The end face of the first frame connecting block and the bottom reinforcing rib are connected by bolts.

[0012] To connect and buffer the base plate and the edge strip, a second edge strip connecting post is formed on the base plate, a base plate connecting seat is formed on the edge strip, and an isolation pad is fastened to the base plate connecting seat. The second edge strip connecting post and the base plate connecting seat are connected by bolts.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: by setting an isolation pad between the frame and the inner baffle, the isolation pad separates the frame from other front panels, avoiding direct contact between different metals and accelerating metal corrosion. At the same time, the isolation pad can buffer the frame and front panel, reducing abnormal noise caused by vibration. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This is an exploded view of the overall structure of this utility model from one perspective;

[0018] Figure 4 This is an exploded view of the overall structure of this utility model from another perspective;

[0019] In the diagram: 1. Frame; 11. Inner windshield connecting plate; 12. Handlebar fixing sleeve; 13. Reinforcing plate; 14. Connecting sleeve; 15. Side wing; 151. Side connecting plate; 16. Windshield mounting bracket; 17. Bottom reinforcing rib; 2. Upper front bulkhead; 21. Inner windshield connecting post; 22. Lower hole; 23. Upper hole; 24. Lower front bulkhead connecting post; 3. Lower front bulkhead; 31. Third upper front bulkhead connecting seat; 32. Base plate connecting post; 33. First side strip connection. 34. Frame connecting column; 4. Side strip; 41. First frame connecting block; 42. First lower front bulkhead connecting seat; 43. Second lower front bulkhead connecting seat; 44. Second frame connecting block; 45. Floor plate connecting seat; 5. Inner windshield; 51. First upper front bulkhead connecting hole; 52. Second upper front bulkhead connecting hole; 53. Side strip connecting plate; 6. Floor plate; 61. Third lower front bulkhead connecting seat; 62. Second side strip connecting column; 7. Isolation pad; 8. Pad plate. Detailed implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: an isolation mounting structure between a magnesium alloy and an iron frame, including a frame 1. The frame 1 includes a connecting cylinder 14. A handlebar fixing cylinder 12 is formed at the upper end of the connecting cylinder 14. A handlebar is inserted into the handlebar fixing cylinder 12, which is convenient for controlling the rotation of the handlebar and adjusting the direction of the vehicle. A windshield mounting seat 16 is fixed at the upper end of the handlebar fixing cylinder 12 for mounting an inner windshield 5. An inner windshield connecting plate 11 is formed on the inner side surface of the handlebar fixing cylinder 12. The inner windshield connecting plate 11 is in a square shape, enhancing the rigidity of the inner windshield connecting plate 11. An isolation cushion block 7 is buckled on the plate near the inner side of the inner windshield connecting plate 11. The cross-section of the isolation cushion block 7 is in a U shape. The isolation cushion block 7 is inserted into the inner windshield connecting plate 11, and the inner windshield connecting plate 11 and the inner windshield 5 are connected by bolts. Through the plastic isolation cushion block 7, the inner windshield connecting plate 11 and the inner windshield 5 are separated, avoiding direct contact between the inner windshield 5 and the frame 1 and preventing direct contact between different metals. Since the electric potentials between different metals are different, electron diffusion will occur between the metals, thus accelerating the corrosion between the metals. Rectangular frame-shaped flanks 15 are formed on both sides of the connecting cylinder 14. Reinforcement plates 13 are welded inside the flanks 15. The reinforcement plates 13 are welded on both sides of the connecting cylinder 14. Isolation cushion blocks 7 are also buckled on the side edges of the two reinforcement plates 13. Threaded holes are formed in the reinforcement plates 13. A frame connecting column 34 is formed on the lower front panel 3. The frame connecting column 34 and the reinforcement plate 13 are connected by bolts. The isolation cushion block 7 is clamped between the reinforcement plate 13 and the frame connecting column 34. The reinforcement plate 13 and the lower front panel 3 are separated by the isolation cushion block 7, avoiding direct contact between the magnesium alloy lower front panel 3 and the iron frame 1 and accelerating the corrosion between the metals. At the same time, the isolation cushion block 7 can buffer between the lower front panel 3 and the frame 1, avoiding noise generated when the metals contact during vibration. Moreover, the U-shaped isolation cushion block 7 is convenient to install and enhances the connection strength with the reinforcement plate 13 and the inner windshield connecting plate 11.

[0022] As Figure 2As shown, the inner windshield 5 has a first upper front cover connecting hole 51 and a second upper front cover connecting hole 52 on its end face. The front of the inner windshield 5 is connected to an upper front cover 2. The surface of the upper front cover 2 has an upper hole 23 and a lower hole 22. The upper hole 23 is used to pass through the windshield mounting bracket 16 for easy installation of the windshield. The lower hole 22 is used to install the vehicle light. Bolts are connected to both the first upper front cover connecting hole 51 and the second upper front cover connecting hole 52. An inner windshield connecting post 21 corresponding to the first upper front cover connecting hole 51 and the second upper front cover connecting hole 52 is formed on the inner side of the upper front cover 2. The windshield connecting post 21 has a groove in the center, and the inner wall of the groove is formed with threads. The bolt passes through the first upper front cover connecting hole 51 or the second upper front cover connecting hole 52 and is threaded to the inner windshield connecting post 21 to connect the inner windshield 5 and the upper front cover 2. A pad 8 is clamped between the bolt and the inner windshield connecting post 21. The pad 8 separates the inner windshield connecting post 21 from the first upper front cover connecting hole 51 or the second upper front cover connecting hole 52. At the same time, the pad 8 can buffer the inner windshield 5 and the upper front cover 2 to prevent abnormal noise between the inner windshield and the upper front cover 2 during vibration.

[0023] The lower end of the upper front panel 2 is connected to the lower front panel 3. The lower end of the upper front panel 2 is formed with a lower front panel connecting post 24. The upper end of the lower front panel 3 is formed with a third upper front panel connecting seat 31. The cross-section of the third upper front panel connecting seat 31 is I-shaped. An isolation pad 7 is also fastened to the third upper front panel connecting seat 31. The isolation pad 7 is fastened to the middle crossbar of the I-shape. The isolation pad 7 is clamped between the third upper front panel connecting seat 31 and the lower front panel connecting post 24. The third upper front panel connecting seat 31 and the lower front panel connecting post 24 are connected by bolts. The isolation pad 7 separates the third upper front panel connecting seat 31 and the lower front panel connecting post 24. At the same time, the isolation pad 7 can play a buffering role and reduce abnormal noise between the lower front panel 3 and the upper front panel 2 during vibration.

[0024] The bottom of the lower front panel 3 is formed with a base plate connecting post 32, and a base plate 6 is connected to the base plate connecting post 32 by bolts. A third lower front panel connecting seat 61 is formed on the end of the base plate 6. The cross-section of the third lower front panel connecting seat 61 is I-shaped. An isolation pad 7 is fastened to the third lower front panel connecting seat 61. The isolation pad 7 is clamped between the base plate 6 and the lower front panel 3. The isolation pad 7 is fastened to the I-shaped middle crossbar of the third lower front panel connecting seat 61. The isolation pad 7 is fixed between the lower front panel 3 and the base plate 6 by bolts, which reduces the generation of abnormal noise.

[0025] like Figure 2 and 3As shown, an outer connecting plate 151 is formed on the outer end face of the side wing 15, and a side strip 4 is connected to the outer connecting plate 151. A second frame connecting block 44 is formed on one end of the side strip 4. The second frame connecting block 44 is connected to the outer connecting plate 151 by bolts. A waist-shaped pad is also provided between the second frame connecting block 44 and the outer connecting plate 151 to buffer the noise and reduce the abnormal noise between the side strip 4 and the side wing 15.

[0026] The inner side of the side strip 4 is formed with a first lower front fascia connecting seat 42 and a second lower front fascia connecting seat 43. Two first side strip connecting posts 33 are formed on the lower front fascia 3. The two lower front fascia connecting posts 24 are respectively bolted to the first lower front fascia connecting seat 42 and the second lower front fascia connecting seat 43. The cross-section of both the first lower front fascia connecting seat 42 and the second lower front fascia connecting seat 43 is I-shaped. The isolation pad 7 is fastened to the first lower front fascia connecting seat 42 and the second lower front fascia connecting seat 43. The side strip 4 and the lower front fascia 3 are connected by bolts. Together, the isolation pad 7 buffers the side strip 4 and the lower front bulkhead 3 to reduce the generation of abnormal noise. The side strip 4 is also connected to the inner windshield 5. The lower end of the inner windshield 5 is formed with a side strip connecting plate 53. The side strip connecting plate 53 includes a waist-shaped strip and a hollow cylinder formed on the waist-shaped strip. The side strip connecting plate 53 moves to the top of the side strip 4 and is connected to the hollow cylinder on the first frame connecting block 41 of the side strip 4 by bolts. A pad is also provided between the side strip connecting plate 53 and the first frame connecting block 41 to reduce the generation of abnormal noise.

[0027] A bottom reinforcing rib 17 is fixed on the bottom of the frame 1. A threaded hole is provided on the side of the first frame connecting block 41. The end faces of the first frame connecting block 41 and the bottom reinforcing rib 17 are connected by bolts.

[0028] like Figure 3 and 4 As shown, a second side strip connecting post 62 is formed on the base plate 6, and a base plate connecting seat 45 is formed on the side strip 4. The base plate connecting seat 45 is I-shaped, and an isolation pad 7 is fastened to the base plate connecting seat 45. The second side strip connecting post 62 and the base plate connecting seat 45 are connected by bolts to buffer between the base plate 6 and the side strip 4 and reduce abnormal noise.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for isolating a magnesium alloy from an iron frame, comprising a frame, characterized by: The frame includes a connecting cylinder, an upper end of the connecting cylinder is formed with a handle fixing cylinder, an upper end of the handle fixing cylinder is fixed with a windshield mounting seat for mounting an inner windshield, an inner side of the handle fixing cylinder is formed with an inner windshield connecting plate, the inner windshield connecting plate is in the shape of a mouth, a plate close to the inner side of the inner windshield connecting plate is buckled with a separation pad, the separation pad is in the shape of a U in cross section, the separation pad is inserted into the inner windshield connecting plate, and the inner windshield connecting plate and the inner windshield are connected through bolts, both sides of the connecting cylinder are formed with side wings in the shape of rectangular frames, the side wings are connected with reinforcing plates, the reinforcing plates are connected to both sides of the connecting cylinder, the side edges of the reinforcing plates are also buckled with separation pads, threaded holes are formed in the reinforcing plates, a front side of the inner windshield is connected with an upper front wall, a lower end of the upper front wall is connected with a lower front wall, the lower front wall is formed with a frame connecting column, the frame connecting column and the reinforcing plate are connected through bolts, and the separation pads are clamped in the reinforcing plates and the frame connecting column.

2. The magnesium alloy and iron frame isolation mounting structure according to claim 1, characterized by: End faces of the inner windshield are formed with a first upper front wall connecting hole and a second upper front wall connecting hole, bolts are connected in the first upper front wall connecting hole and the second upper front wall connecting hole, inner side faces of the upper front wall are formed with inner windshield connecting columns corresponding to the first upper front wall connecting hole and the second upper front wall connecting hole, a recess is formed in the center of the inner windshield connecting column, threads are formed in inner walls of the recess, the bolts are threadedly connected with the inner windshield connecting column through the first upper front wall connecting hole or the second upper front wall connecting hole, the inner windshield and the upper front wall are connected, and a pad plate is clamped between the bolts and the inner windshield connecting column.

3. The magnesium alloy and iron frame isolation mounting structure according to claim 1, characterized by: A lower end of the upper front wall is formed with a lower front wall connecting column, an upper end of the lower front wall is formed with a third upper front wall connecting seat, the third upper front wall connecting seat is in the shape of an I in cross section, a separation pad is buckled on the third upper front wall connecting seat, the separation pad is clamped between the third upper front wall connecting seat and the lower front wall connecting column, and the third upper front wall connecting seat and the lower front wall connecting column are connected through bolts.

4. The magnesium alloy and iron frame isolation mounting structure according to claim 1, characterized by: A lower end of the lower front wall is formed with a bottom plate connecting column, a bottom plate is connected to the bottom plate connecting column through bolts, a third lower front wall connecting seat is formed in an end face of the bottom plate, the third lower front wall connecting seat is in the shape of an I in cross section, a separation pad is buckled on the third lower front wall connecting seat, the separation pad is clamped between the third lower front wall connecting seat and the bottom plate connecting column, and the third lower front wall connecting seat and the bottom plate connecting column are connected through bolts.

5. The magnesium alloy and iron frame isolation mounting structure according to claim 1, characterized by: An outer side end face of the side wing is formed with an outer side connecting plate, a side strip is connected to the outer side connecting plate, a second frame connecting block is formed in one end of the side strip, and the second frame connecting block and the outer side connecting plate are connected through bolts.

6. The magnesium alloy and iron frame isolation mounting structure according to claim 5, characterized by: The inner side of the side strip is formed with a first lower front connecting seat and a second lower front connecting seat, the lower front wall is formed with two first side strip connecting columns, the first lower front connecting seat and the second lower front connecting seat are bolted with the two lower front connecting columns respectively, the first lower front connecting seat and the second lower front connecting seat are both in the shape of an I-beam, the isolation pad is buckled on the first lower front connecting seat and the second lower front connecting seat, the side strip is further connected with an inner wind shield, the lower end of the inner wind shield is formed with a side strip connecting plate, and the side strip connecting plate is bolted with the first frame connecting block of the side strip.

7. The magnesium alloy and iron frame isolation mounting structure according to claim 5, characterized by: The bottom of the frame is fixed with a bottom reinforcing rib, and the end face of the side strip is further formed with a first frame connecting block, and the end faces of the first frame connecting block and the bottom reinforcing rib are bolted.

8. The magnesium alloy and iron frame isolation mounting structure according to claim 4, characterized by: The bottom plate is formed with a second side strip connecting column, the side strip is formed with a bottom plate connecting seat, the bottom plate connecting seat is buckled with an isolation pad, and the second side strip connecting column and the bottom plate connecting seat are bolted.

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