Rear fork and vehicle

Abstract

The utility model provides a rear fork and a vehicle, relates to the technical field of vehicles, and aims to solve the technical problems of low welding yield, poor weld joint attractiveness and low welding efficiency during thin plate welding. The number of the flat fork plates is two, one end of one flat fork plate is connected with the flat fork head pipe, one end of the other flat fork plate is connected with the flat fork head pipe, the two flat fork plates are oppositely arranged, and a gap is formed between the two flat fork plates; the two flat fork plates each comprise an outer plate and an inner plate, the outer plates and the inner plates are connected through laser filler wire welding, and welding seams are formed between the outer plates and the inner plates.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a rear fork and a vehicle. BACKGROUND

[0002] The rear fork is an important component of electric bicycles, electric motorcycles and traditional oil motorcycles. The rear fork is installed between the frame of the vehicle and the wheel shaft of the rear wheel, and plays a role in supporting and connecting the frame and the wheel, and transmitting the load between the wheel and the frame.

[0003] The existing rear fork uses structure forms such as rectangular tube welding combination, round tube welding combination, elliptical tube welding combination, sheet metal splicing type welding combination, aluminum alloy forging welding combination and aluminum alloy casting welding combination. The sheet metal splicing type rear fork welding combination is generally welded by carbon dioxide gas shielded arc welding, and the protective gas can be carbon dioxide, and the protective gas can be carbon dioxide and argon.

[0004] However, when welding thin plates by using carbon dioxide gas shielded arc welding, the yield of good products is low,

[0005] The weld appearance is poor, and the welding efficiency is low. Therefore, the present application provides a fork and a vehicle. INVENTION CONTENTS

[0006] The present application provides a rear fork and a vehicle to solve the technical problems of low yield of good products, poor weld appearance and low welding efficiency when welding thin plates.

[0007] In order to achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions:

[0008] In a first aspect, the embodiments of the present application provide a rear fork, comprising:

[0009] A fork head pipe;

[0010] Two fork plates, one end of one of the fork plates is connected with the fork head pipe, one end of the other fork plate is connected with the fork head pipe, the two fork plates are oppositely arranged, and the two fork plates have a spacing therebetween;

[0011] Both of the two fork plates comprise an outer plate and an inner plate, the outer plate and the inner plate are connected by laser filler wire welding, and a weld is formed between the outer plate and the inner plate.

[0012] According to one embodiment of the present application, the outer plate is formed with a mounting cavity, and the outer plate is formed with a mounting cavity opening which communicates with the mounting cavity;

[0013] The mounting cavity opening and the mounting cavity of one of the outer plates are both located at an end of the mounting cavity close to the other outer plate;

[0014] The inner plate penetrates the mounting cavity opening and is inserted into the mounting cavity, the inner plate overlaps with the outer plate, and the weld is located at the overlapping position of the inner plate and the outer plate.

[0015] According to an embodiment of the present application, the outer plate comprises:

[0016] An outer end plate located at a side end of the mounting cavity opposite to the mounting cavity opening;

[0017] An outer flange defining the mounting cavity together with the outer end plate, the outer flange defining the mounting cavity opening;

[0018] The outer flange has oppositely arranged first and second outer ends, the first outer end is connected with the outer end plate, and the mounting cavity opening is arranged at the second outer end.

[0019] According to an embodiment of the present application, the inner plate comprises:

[0020] An inner end plate located at a side end of the inner plate away from the outer end plate;

[0021] An inner flange having oppositely arranged first and second inner ends;

[0022] The second inner end is connected with the outer peripheral edge of the inner end plate, and the first inner end is located on a side of the second inner end away from the inner end plate.

[0023] The inner flange overlaps with the outer flange, and the weld is located at the overlapping position of the inner flange and the outer flange;

[0024] The second inner end is flush with the second outer end or is located on a side of the second outer end close to the outer end plate.

[0025] According to an embodiment of the present application, the inner flange comprises a first inner flange and a second inner flange, the first inner flange is located at the top of the inner plate, and the second inner flange is located at the bottom of the inner plate;

[0026] The outer flange comprises a first outer flange and a second outer flange, the first outer flange is located above the first inner flange, the first outer flange overlaps with the first inner flange, the second outer flange is located below the second inner flange, and the second outer flange overlaps with the second inner flange.

[0027] According to an embodiment of the present application, comprising:

[0028] The reinforcing plate is arranged in the mounting cavity, and the reinforcing plate is connected with the outer plate and abuts against the inner plate.

[0029] According to an embodiment of the present application, the reinforcing plate comprises:

[0030] The first reinforcing plate is connected with the outer plate;

[0031] The second reinforcing plate is connected with the top end of the first reinforcing plate at one end, and the other end of the second reinforcing plate abuts against the inner plate;

[0032] The third reinforcing plate is connected with the bottom end of the first reinforcing plate at one end, and the other end of the third reinforcing plate abuts against the inner plate.

[0033] According to an embodiment of the present application, the reinforcing plate is connected with the outer plate through laser spot welding; and the reinforcing plate is attached to the outer plate.

[0034] According to an embodiment of the present application, a first avoiding gap is formed in the outer plate, the first avoiding gap penetrates the outer plate in the thickness direction of the outer plate, and the first avoiding gap is located at the second outer end of the first outer turning edge.

[0035] The rear fork comprises:

[0036] The fork reinforcing plate is arranged in the mounting cavity, the fork reinforcing plate is located between the inner end plate and the outer end plate, and the fork reinforcing plate is connected with the fork plate.

[0037] The shock absorber connecting piece is arranged in the first avoiding gap, the bottom of the shock absorber connecting piece is connected with the fork reinforcing plate, a first connecting part for connecting with a shock absorber is formed on the shock absorber connecting piece, and the first connecting part is located above the first avoiding gap.

[0038] In a second aspect, the embodiments of the present application provide a vehicle comprising the rear fork in the above embodiments.

[0039] The rear fork and the vehicle provided by the present application have the following technical effects: the fork plate comprises the inner plate and the outer plate, so that the fork plate has good strength and rigidity; the outer plate and the inner plate are connected through laser wire filling welding, so that the outer plate and the inner plate are welded together, the welding efficiency is high, the manpower can be saved, the outer plate and the inner plate are less polluted during welding, the welding is accurate, the welding seam surface between the outer plate and the inner plate is smooth, the welding seam has good appearance, the welding strength is high, the welding heat is concentrated, the heat affected zone at the welding seam is small, the overall deformation of the outer plate and the inner plate is small, the subsequent correction process is reduced, the outer plate and the inner plate are less likely to be welded through during welding, and the yield rate is high. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without creative effort based on these drawings.

[0041] Figure 1 A structural schematic diagram of a rear derailleur according to an embodiment of the present application;

[0042] Figure 2 Another structural schematic diagram of a rear derailleur according to an embodiment of the present application;

[0043] Figure 3 An exploded view of a partial structure of a rear derailleur according to an embodiment of the present application;

[0044] Figure 4 A sectional view of a partial structure of a rear derailleur according to an embodiment of the present application;

[0045] Figure 5 A partial sectional view of a rear derailleur according to an embodiment of the present application;

[0046] Figure 6 Another exploded view of a partial structure of a rear derailleur according to an embodiment of the present application;

[0047] Figure 7 A schematic diagram of a partial structure of a vehicle according to an embodiment of the present application;

[0048] Figure 8 Another structural diagram of a partial structure of a rear derailleur according to an embodiment of the present application;

[0049] Figure 9 Another schematic diagram of a partial structure of a vehicle according to an embodiment of the present application;

[0050] Figure 10 Another exploded view of a partial structure of a rear derailleur according to an embodiment of the present application;

[0051] Figure 11 Another exploded view of a partial structure of a rear derailleur according to an embodiment of the present application;

[0052] Figure 12 Another sectional view of a rear derailleur according to an embodiment of the present application;

[0053] Figure 13 Another structural diagram of a partial structure of a rear derailleur according to an embodiment of the present application;

[0054] Figure 14 Another exploded view of a partial structure of a rear derailleur according to an embodiment of the present application.

[0055] Reference Signs List:

[0056] 100: rear fork;

[0057] 11: head tube; 111: head tube outer wall; 112: head tube through hole;

[0058] 12: fork plate;

[0059] 121: outer plate; 1211: outer end plate; 1212: outer flange; 12121: first outer flange; 12122: second outer flange; 12123: first outer end; 12124: second outer end; 12125: third outer flange; 12126: fourth outer flange; 1213: first avoiding notch; 1214: mounting cavity; 1215: mounting cavity opening; 1216: outer plate shaft slot;

[0060] 122: inner plate; 1221: inner end plate; 12211: first through hole; 1222: inner flange; 12221: first inner flange; 12222: second inner flange; 12223: first inner end; 12224: second inner end; 1223: inner plate shaft slot;

[0061] 1231: upper weld; 12311: first upper weld; 12312: second upper weld; 1232: lower weld;

[0062] 13: reinforcing plate; 131: first reinforcing plate; 132: second reinforcing plate; 133: third reinforcing plate;

[0063] 141: fork reinforcing plate; 1411: first fork reinforcing plate; 14111: first reinforcing plate shaft slot; 14112: second through hole; 1412: second fork reinforcing plate; 14121: second reinforcing plate shaft slot; 14122: first limiting slot; 14123: first positioning slot;

[0064] 142: brake limiting piece; 1421: limiting column; 1422: limiting block;

[0065] 143: shock absorber connecting piece; 1431: first connecting part;

[0066] 144: reinforcing piece; 145: fork inner liner tube; 146: fork inner liner tube retaining rubber; 147: fork buffer sleeve;

[0067] 21: rear wheel shaft; 31: brake support; 311: brake limiting slot; 41: frame; 51: shock absorber. DETAILED DESCRIPTION

[0068] As described in the background, in the related art, when a thin plate is welded by using a carbon dioxide gas shielded arc welding, problems such as welding through, welding slag splashing, environmental pollution, etc. are prone to occur, so that the welding yield is low, the weld appearance is poor, the welding speed is low, and the welding efficiency is low.

[0069] In view of the above technical problems, the present application provides a rear fork, which comprises a fork head pipe and two fork plates, one end of one of the fork plates is connected with the fork head pipe, one end of the other fork plate is connected with the fork head pipe, the two fork plates are oppositely arranged and have a spacing therebetween, and the two fork plates each comprise an outer plate and an inner plate, so that the fork plates have good strength and rigidity; the outer plate and the inner plate are connected by laser wire filling welding, a weld is formed between the outer plate and the inner plate, the welding speed is high, the welding efficiency is high, manpower can be saved, the outer plate and the inner plate are less polluted during welding, the welding is accurate, the surface of the weld between the outer plate and the inner plate is smooth, the weld appearance is good, the welding strength is high, the welding heat is concentrated, the heat affected zone at the weld is small, the overall deformation of the outer plate and the inner plate is small, the subsequent correction process is reduced, the welding is not prone to welding through, and the yield is high.

[0070] In order to make the purpose, implementation and advantages of the present application clearer, the following will combine the drawings in the exemplary embodiments of the present application to clearly and completely describe the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, not all the embodiments of the present application.

[0071] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the subsequently described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise stated, these terms should be understood according to their ordinary and general meanings.

[0072] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not have to be limited to the clearly listed components, but can include other components not clearly listed or inherent to the product or device.

[0073] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0074] The terms "first", "second", etc. are only used for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified and limited.

[0075] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0076] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0077] Reference Figure 1 The embodiments of the present application provide a rear fork 100. The rear fork can be mounted on a vehicle, wherein the rear fork 100 can be mounted between the frame of the vehicle and the axle of the rear wheel, the rear fork plays a role of supporting and connecting the frame and the rear wheel, and transmitting the load between the rear wheel and the frame.

[0078] Reference Figure 1 The rear fork 100 includes a fork head tube 11. The fork head tube 11 can be used to connect with the frame. The rear fork includes a fork plate 12. The fork plate 12 can be used to connect with the axle of the rear wheel. Among them, the fork plate 12 can have two. One end of one of the two fork plates is connected with the fork head tube, and one end of the other fork plate is connected with the fork head tube. The two fork plates can be oppositely arranged. The two fork plates can have a spacing therebetween. The rear wheel can be located between the two fork plates.

[0079] The fork head tube 11 can be a hollow cylindrical tube, and the two ends of the fork head tube in the length direction can be open. The cross section of the fork head tube can be annular, wherein the cross section of the fork head tube can be a circular ring or other shape of annular surface. The fork head tube is connected with the rear fork shaft of the vehicle frame. The fork head tube is formed with a head tube through hole 112, which penetrates the fork head tube in the first direction of the head tube. The rear fork shaft is inserted into the fork head tube through hole of the fork head tube.

[0080] The flat fork plate can be connected with the flat fork head tube by welding. The flat fork plate can be welded with the flat fork head tube by carbon dioxide gas shielded arc welding.

[0081] The flat fork head tube can include a head tube outer side wall 111. The flat fork plate can be connected with the head tube outer side wall 111 by welding.

[0082] In some embodiments, referring to Figure 2 The flat fork plate can include an outer plate 121. The flat fork plate can include an inner plate 122. Among them, one flat fork plate includes an outer plate and an inner plate, or both flat fork plates include an outer plate and an inner plate.

[0083] The outer plate and the inner plate can be connected by laser wire filling welding, and a weld joint is formed between the outer plate and the inner plate. Laser wire filling welding has fast welding speed, high efficiency, can save manpower, no pollution, accurate welding, smooth weld joint surface, good weld joint appearance, high welding strength, concentrated laser wire filling welding heat, small overall deformation of the outer plate and the inner plate, reduces the subsequent correction process, not easy to weld through, high yield.

[0084] Among them, the welding wire of laser wire filling welding can be stainless steel welding wire, low carbon steel welding wire, aluminum alloy welding wire and copper welding wire, etc.

[0085] In some embodiments, referring to Figure 3 An installation cavity 1214 is formed on the outer plate 121. An installation cavity opening 1215 is formed on the outer plate 121. Among them, the installation cavity opening 1215 communicates with the installation cavity 1214. It should be noted that the outer plate of the two flat fork plates is formed with an installation cavity. The outer plate of the two flat fork plates is formed with an installation cavity opening.

[0086] Among the installation cavity opening and the installation cavity of one of the outer plates, the installation cavity opening is located at the end of the installation cavity close to the other outer plate.

[0087] The inner plate is inserted through the installation cavity opening and inserted into the installation cavity, so that the outer plate can protect the inner plate. The inner plate and the outer plate are overlapped, and the weld joint is located at the overlapping portion of the inner plate and the outer plate.

[0088] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5 The outer plate 121 can include an outer end plate 1211. The outer end plate 1211 can be located at the side end opposite to the installation cavity and the installation cavity opening.

[0089] The outer plate 121 can include an outer flange 1212. The outer flange 1212 and the outer end plate 1211 can define a mounting cavity. The outer flange 1212 can define a mounting cavity opening. The outer flange 1212 can have a first outer end 12123 and a second outer end 12124 opposite each other. The first outer end 12123 can be connected to the outer end plate 1211. The second outer end 12124 can be provided with the mounting cavity opening 1215.

[0090] In some embodiments, referring to Figure 3 、 Figure 4 and Figure 5 , the inner plate 122 can include an inner end plate 1221. The inner end plate can be located at a side end of the inner plate away from the outer end plate.

[0091] Referring to Figure 3 、 Figure 4 and Figure 5 , the inner plate 122 can include an inner flange 1222. The inner flange 1222 has a first inner end 12223 and a second inner end 12224 opposite each other. The second inner end 12224 is connected to the outer peripheral edge of the inner end plate, and the first inner end is located on the side of the second inner end away from the inner end plate. The inner flange overlaps the outer flange, and the weld is located at the overlap of the inner flange and the outer flange.

[0092] The second inner end is flush with the second outer end or the second inner end is located on the side of the second outer end close to the outer end plate, so that the outer flange shields the inner flange, and the weld between the outer plate and the inner plate is hidden inside the outer flange. From the outside of the fork plate, the weld cannot be seen, so that the weld has no effect on the appearance of the rear fork, and the appearance of the rear fork is visually good.

[0093] In some embodiments, referring to Figure 3 、 Figure 4 and Figure 5 , the inner flange 1222 can include a first inner flange 12221. The first inner flange is located at the top of the inner plate. The second inner end of the first inner flange is connected to the top end of the inner end plate. The inner flange 1222 can include a second inner flange 12222. The second inner flange is located at the bottom of the inner plate. The second inner end of the second inner flange is connected to the bottom end of the inner end plate. The inner flange is provided with the first inner flange and the second inner flange, so that the cross section of the inner plate at the position is substantially U-shaped.

[0094] The outer flange 1212 can include a first outer flange 12121. The first outer flange 12121 can be located above the first inner flange 12221. The first outer end of the first outer flange can be connected to the top of the outer end plate. The first outer flange and the first inner flange overlap.

[0095] The outer flange 1212 can include a second outer flange 12122. The second outer flange 12122 is located below the second inner flange. The first outer end of the second outer flange can be connected to the bottom of the outer end plate. The second outer flange overlaps the second inner flange. The outer flange includes the first outer flange and the second outer flange, so that the cross section of the outer plate portion is substantially U-shaped.

[0096] In some embodiments, with reference to Figure 4 、 Figure 5 and Figure 6 , the rear fork includes a reinforcing plate 13. The reinforcing plate 13 is used to improve the overall strength and rigidity of the fork plate. The reinforcing plate is arranged in the mounting cavity. Among them, the mounting cavity of one fork plate is provided with a reinforcing plate, or the mounting cavities of two fork plates are provided with reinforcing plates.

[0097] The reinforcing plate is connected with the outer plate, so that the reinforcing plate can be fixed on the outer plate, avoiding the reinforcing plate from shaking in the mounting cavity, and enabling the reinforcing plate to stably play the function of enhancing the strength and rigidity of the fork plate. The reinforcing plate abuts against the inner plate, so that the inner plate and the outer plate can be accurately positioned during welding, improving the accuracy of the welding position.

[0098] In some embodiments, the reinforcing plate and the outer plate are connected by laser spot welding, which has fast welding speed, high welding efficiency, high welding accuracy, small overall deformation of the reinforcing plate and the outer plate, reduces the subsequent correction process, and high welding accuracy.

[0099] In some embodiments, with reference to Figure 4 、 Figure 5 and Figure 6 , the reinforcing plate is attached to the outer plate, which can increase the contact area between the reinforcing plate and the outer plate, and further improve the reinforcing effect of the reinforcing plate on the strength and rigidity of the fork plate.

[0100] In some embodiments, with reference to Figure 4 、 Figure 5 and Figure 6 , the reinforcing plate 13 can include a first reinforcing plate 131. The first reinforcing plate 131 is arranged in the mounting cavity. The first reinforcing plate is connected with the outer plate. Specifically, the first reinforcing plate is connected with the outer end plate. Among them, the first reinforcing plate and the outer plate are connected by laser spot welding.

[0101] In some embodiments, with reference to Figure 4 、 Figure 5 and Figure 6 , the reinforcing plate 13 can include a second reinforcing plate 132. The second reinforcing plate 132 can be connected with the first reinforcing plate 131. The second reinforcing plate 132 can abut against the inner plate, so that the second reinforcing plate limits the inner plate. Among them, one end of the second reinforcing plate can be connected with the top end of the first reinforcing plate. The other end of the second reinforcing plate can abut against the inner plate.

[0102] The end of the second reinforcing plate connected to the first reinforcing plate can be a first end of the second reinforcing plate, and the end of the second reinforcing plate abutting against the inner plate can be a second end of the second reinforcing plate, the second end of the second reinforcing plate being located on a side of the first end of the second reinforcing plate away from the outer end plate.

[0103] The second reinforcing plate can be attached to the first outer flange, so that the second reinforcing plate can enhance the strength and rigidity of the first outer flange at the inner side of the first outer flange.

[0104] The second reinforcing plate abuts against the first inner flange, which can improve the positioning accuracy between the first outer flange and the first inner flange, so that the position of the weld between the first outer flange and the first inner flange is relatively accurate.

[0105] In some embodiments, referring to Figure 4 , Figure 5 and Figure 6 , the reinforcing plate 13 can include a third reinforcing plate 133. The third reinforcing plate 133 can be connected to the first reinforcing plate 131. The third reinforcing plate 133 can abut against the inner plate, so that the third reinforcing plate limits the inner plate. Wherein, one end of the third reinforcing plate can be connected to the bottom end of the first reinforcing plate. The other end of the third reinforcing plate can abut against the inner plate.

[0106] The end of the third reinforcing plate connected to the first reinforcing plate can be a first end of the third reinforcing plate, and the end of the third reinforcing plate abutting against the inner plate can be a second end of the third reinforcing plate, the second end of the third reinforcing plate being located on a side of the first end of the third reinforcing plate away from the outer end plate.

[0107] The third reinforcing plate can be attached to the second outer flange, so that the third reinforcing plate can enhance the strength and rigidity of the second outer flange at the inner side of the second outer flange.

[0108] The third reinforcing plate abuts against the second inner flange, which can improve the positioning accuracy between the second outer flange and the second inner flange, so that the position of the weld between the second outer flange and the second inner flange is relatively accurate.

[0109] In some embodiments, at least two reinforcing plates can be provided in each mounting cavity. The flat fork plate can include a first end and a second end of the flat fork plate arranged opposite to each other, wherein the first end of the flat fork plate can be connected to the flat fork head pipe. The reinforcing plates in the mounting cavity can be arranged in sequence and spaced apart from each other from the first end of the flat fork plate to the second end of the flat fork plate.

[0110] In some embodiments, referring to Figure 6 , Figure 7 and Figure 8The rear wheel shaft groove is provided on the two flat fork plates. The rear wheel shaft groove is provided on the second end of the flat fork plate. The rear wheel shaft groove is provided on both of the flat fork plates. The rear wheel shaft groove is provided oppositely on the two flat fork plates. The rear wheel shaft 21 of the vehicle is inserted into the two rear wheel shaft grooves. The end of the rear wheel shaft groove away from the first end of the flat fork plate is open, so that the rear wheel shaft is inserted into the rear wheel shaft groove.

[0111] The rear wheel shaft groove can include an outer plate shaft groove 1216. The outer plate shaft groove is provided on the outer plate. The outer plate shaft groove is located at the end of the outer plate away from the head tube. Specifically, the outer plate shaft groove is provided on the outer end plate.

[0112] The rear wheel shaft groove can include an inner plate shaft groove 1223. The inner plate shaft groove is provided on the inner plate. The inner plate shaft groove is located at the end of the inner plate away from the head tube. Specifically, the inner plate shaft groove is provided on the inner end plate.

[0113] In some embodiments, referring to Figure 6 , Figure 7 and Figure 8 , the rear fork includes a flat fork reinforcing plate 141. The flat fork reinforcing plate is used to reinforce the strength and rigidity of the rear fork. The flat fork reinforcing plate 141 is arranged in the mounting cavity. The flat fork reinforcing plate is located between the inner end plate and the outer end plate. Among them, the mounting cavity of one flat fork plate can be provided with a flat fork reinforcing plate. Or, the mounting cavities of the two flat fork plates are provided with flat fork reinforcing plates.

[0114] The flat fork reinforcing plate is connected with the flat fork plate, which avoids the flat fork reinforcing plate from shaking in the mounting cavity, so as to better reinforce the strength and rigidity of the flat fork plate.

[0115] Referring to Figure 8 , Figure 9 and Figure 10 , the flat fork reinforcing plate 141 includes a first flat fork reinforcing plate 1411. The first flat fork reinforcing plate 1411 is connected with the inner plate. The first flat fork reinforcing plate can be connected with the inner end plate through welding.

[0116] A first reinforcing plate shaft groove 14111 is provided on the first flat fork reinforcing plate 1411. The first reinforcing plate shaft groove 14111 is located at the end of the first flat fork reinforcing plate away from the first end of the flat fork plate. The rear wheel shaft 21 can be inserted into the first reinforcing plate shaft groove. The end of the first reinforcing plate shaft groove away from the first end of the flat fork plate is open, so that the rear wheel shaft 21 is put into the first reinforcing plate shaft groove.

[0117] Referring to Figure 8 , Figure 9 and Figure 10The first rear fork reinforcing plate 141 includes a second rear fork reinforcing plate 1412. The second rear fork reinforcing plate 1412 is connected with the first rear fork reinforcing plate. The second rear fork reinforcing plate can be connected with the first rear fork reinforcing plate by welding. The second rear fork reinforcing plate can be located on the side of the first rear fork reinforcing plate away from the inner end plate.

[0118] The second rear fork reinforcing plate 1412 is provided with a second reinforcing plate shaft groove 14121. The second reinforcing plate shaft groove 14121 is located at one end of the second rear fork reinforcing plate away from the first end of the rear fork plate. The rear wheel shaft 21 can be inserted into the second reinforcing plate shaft groove. The end of the second reinforcing plate shaft groove away from the first end of the rear fork plate can be open, facilitating the insertion of the rear wheel shaft 21 into the second reinforcing plate shaft groove.

[0119] In some embodiments, referring to Figure 8 、 Figure 9 and Figure 10 , the rear fork includes a brake limiting piece 142. The brake support of the vehicle is sleeved on the rear wheel shaft. The brake support 31 of the vehicle is formed with a brake limiting groove 311. The brake limiting piece 142 is inserted into the brake limiting groove to limit the rotation of the brake support on the rear wheel shaft.

[0120] Referring to Figure 8 、 Figure 9 and Figure 10 , the brake limiting piece can include a limiting column 1421. The limiting column is inserted into the brake limiting groove. The brake support is located on the side of the inner end plate away from the outer end plate.

[0121] The inner end plate 1221 is formed with a first through hole 12211. The limiting column is inserted into the first through hole. The first through hole 12211 penetrates the inner end plate in the thickness direction of the inner end plate.

[0122] The first rear fork reinforcing plate is formed with a second through hole 14112. The limiting column is inserted into the second through hole. The second through hole 14112 penetrates the first rear fork reinforcing plate in the thickness direction of the first rear fork reinforcing plate.

[0123] Referring to Figure 8 、 Figure 9 and Figure 10 , the brake limiting piece 142 includes a limiting block 1422. One end of the limiting column 1421 is inserted into the brake limiting groove, and the other end of the limiting column is connected with the limiting block. The limiting block is located on the side of the first rear fork reinforcing plate away from the inner end plate, and the limiting block abuts against the first rear fork reinforcing plate. The brake limiting piece is fixedly connected with the first rear fork reinforcing plate. The brake limiting piece is fixedly connected with the first rear fork reinforcing plate by welding.

[0124] The first limiting slot is formed on the second flat fork reinforcing plate 1412. The limiting block is located in the first limiting slot. The first limiting slot can be located at one end of the second flat fork reinforcing plate close to the first end of the flat fork plate. The end of the first limiting slot close to the first end of the flat fork plate can be open, which facilitates the insertion of the limiting block into the first limiting slot.

[0125] In some embodiments, with reference to Figure 11 , the outer plate is formed with a first avoiding gap 1213. The first avoiding gap 1213 penetrates the outer plate in the thickness direction of the outer plate. The first avoiding gap is located at the second outer end of the first outer turning edge. The first avoiding gap is completely located on the first outer turning edge, or the first avoiding gap extends to the outer end plate.

[0126] With reference to Figure 11 , the rear flat fork can include a shock absorber connecting piece 143. The shock absorber connecting piece 143 is arranged in the first avoiding gap. The shock absorber connecting piece has two. The two shock absorber connecting pieces are respectively located in the first avoiding gap of the two outer plates.

[0127] The shock absorber connecting piece is connected with the inner plate, and the shock absorber connecting piece is connected with the inner plate by welding. The shock absorber connecting piece is connected with the outer plate, and the shock absorber connecting piece is connected with the outer plate by welding.

[0128] The bottom of the shock absorber connecting piece is connected with the flat fork reinforcing plate. The bottom of the shock absorber connecting piece and the flat fork reinforcing plate can be connected by welding.

[0129] With reference to Figure 10 and Figure 11 , the top of the second flat fork reinforcing plate can be formed with a first positioning slot 14123. The top of the first positioning slot is open. The bottom of the shock absorber connecting piece can be inserted into the first positioning slot 14123.

[0130] With reference to Figure 7 , the shock absorber connecting piece is formed with a first connecting part 1431 for connecting with the shock absorber 51 of the vehicle, and the first connecting part 1431 is located above the first avoiding gap. Among them, the first connecting part can be a first connecting hole. The shock absorber sleeve can be arranged in the first connecting hole.

[0131] In some embodiments, with reference to Figure 12 and Figure 13 , the weld includes an upper weld 1231 formed between the first outer turning edge and the first inner turning edge. The weld includes a lower weld 1232 formed between the second outer turning edge and the second inner turning edge. The second weld can be a continuous weld formed in one continuous weld. The upper weld can include a first upper weld 12311 located at the first avoiding gap close to the first end of the flat fork plate. The upper weld can include a second upper weld 12312 located at the first avoiding gap away from the first end of the flat fork plate, and the second upper weld is not connected with the first upper weld.

[0132] In some embodiments, referring to Figure 11 The out-turned edge 1212 includes a third out-turned edge 12125. The third out-turned edge can be located at an end of the outer plate distal from the drop out tube. The third out-turned edge is located above the axle slot 1216 of the outer plate.

[0133] The out-turned edge 1212 includes a fourth out-turned edge 12126. The fourth out-turned edge can be located at an end of the outer plate distal from the drop out tube. The fourth out-turned edge is located below the axle slot 1216 of the outer plate.

[0134] In some embodiments, referring to Figure 1 The rear drop out includes a reinforcement 144. The reinforcement 144 is located between the two drop out plates, and the reinforcement is connected with the outer sidewall of the drop out tube. The reinforcement is connected with the drop out tube by welding. The reinforcement can be welded with the drop out tube by carbon dioxide gas shielded arc welding. The reinforcement is connected with the drop out plate by welding. The reinforcement can be welded with the drop out plate by carbon dioxide gas shielded arc welding.

[0135] In some embodiments, referring to Figure 14 The rear drop out includes a drop out inner liner tube 145, which is arranged in the drop out through hole, and the rear drop out axle is inserted into the drop out inner liner tube 145.

[0136] The rear drop out includes a drop out inner liner tube retaining rubber 146, which is arranged in the drop out through hole, and the drop out inner liner tube retaining rubber 146 is sleeved on the drop out inner liner tube 145 to provide cushioning.

[0137] The rear drop out includes a drop out cushioning sleeve 147, which is arranged in the drop out through hole. The drop out cushioning sleeve 147 has two, and the two drop out cushioning sleeves 147 are respectively located at both ends of the drop out through hole, and the two drop out through holes are located on both sides of the drop out inner liner tube 145.

[0138] In some embodiments, referring to Figure 7 The application provides a vehicle, which includes a rear drop out. The vehicle includes a frame 41, and the rear drop out axle of the frame is inserted into the drop out tube of the rear drop out. The vehicle includes a rear wheel axle 21, which is inserted into the rear wheel axle slot of the drop out plate. The vehicle includes a brake support 31, which is sleeved on the rear wheel axle, and one drop out plate is located on the side close to the other drop out plate.

[0139] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0140] The foregoing description has been presented for the purpose of illustration and description. It is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and variations are possible in light of the above teachings or can be acquired from practice of the embodiments. The described embodiments were chosen and described in order to best explain the principles of the embodiments and its practical application. This enables others skilled in the art to best use the embodiments in various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. A rear derailleur, characterized in that, The utility model relates to a flat fork head pipe, flat fork plate, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork plates, two flat fork ​ ​ ​ 2. The rear derailleur according to claim 1, characterized in that, ​ ​ ​ 3. The rear derailleur according to claim 2, characterized in that, ​ ​ ​ ​ 4. The rear derailleur according to claim 3, characterized in that, ​ ​ ​ ​ ​ ​ 5. The rear derailleur according to claim 4, characterized in that, ​ ​ 6. The rear derailleur according to claim 2, characterized in that, ​ ​ 7. The rear derailleur according to claim 6, characterized in that, ​ ​ ​ ​ 8. The rear derailleur according to claim 6, characterized in that, ​ 9. The rear derailleur according to claim 5, characterized in that, A first avoiding gap is formed on the outer plate, the first avoiding gap penetrates the outer plate in the thickness direction of the outer plate, and the first avoiding gap is located at the second outer end of the first outer turning edge; The rear fork includes: A fork reinforcing plate is arranged in the mounting cavity, the fork reinforcing plate is located between the inner end plate and the outer end plate, and the fork reinforcing plate is connected with the fork plate; A shock absorber connecting piece is arranged in the first avoiding gap, the bottom of the shock absorber connecting piece is connected with the fork reinforcing plate, a first connecting part for connecting with a shock absorber is formed on the shock absorber connecting piece, and the first connecting part is located above the first avoiding gap.

10. A vehicle characterized by comprising: The rear fork includes the rear fork according to any one of claims 1-9.

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