Bicycle side bag buckle

Abstract

The present application relates to the field of bicycle accessories, and provides a bicycle side hanging bag fastener, which comprises a horizontal plate, a hook assembly and a fixing device; the hook assembly comprises a female buckle, a male buckle, a rotating hook, a lock piece assembly and a positioning buckle; the upper part of the female buckle is provided with a female buckle cavity and a lock piece cavity, the rear part of the rotating hook is rotatably arranged in the female buckle cavity, and the lock piece assembly is slidably arranged in the lock piece cavity; the positioning buckle is embedded in a positioning buckle embedding groove; the male buckle is buckled on the side edge of the female buckle, and cooperates with the female buckle to limit the positions of the rotating hook, the lock piece assembly and the positioning buckle. The present application enhances the fastening stability of the fastener, and improves the convenience of taking out and buckling the side hanging bag.

Description

Technical Field

[0001] This invention relates to the field of bicycle accessories, and in particular to a bicycle side bag buckle. Background Technology

[0002] Currently known bicycle side bag buckles are usually completely fixed to the bag. This makes it inconvenient to replace the buckle after it is damaged. The cavity range of the buckle and the distance between the two ends of the buckle are also very limited. These problems, such as not being able to flexibly cope with hanging rods of different thicknesses and lengths and the buckles not being secure, bring great inconvenience to the actual use of the buckles.

[0003] To address the technical problems of side bag buckles being unable to flexibly handle hanging rods of different thicknesses and lengths, and the buckles being insecure, Chinese utility model patent CN 201176208Y discloses a bicycle side bag buckle. This side bag buckle includes a rigid base plate fixed to the rear of the side bag, a crossbar riveted to the upper part of the base plate, and a sliding groove riveted to the lower part of the base plate. Each side of the crossbar has a guide rib with several limiting holes on its lower guide rib. Two hooks are attached to both ends of the crossbar, each hook consisting of a slide block, a hook body, a torsion spring, and a pin. Each side of the slide block has a guide groove at its upper and lower ends, which is embedded outside the guide rib and can slide relative to it until it can be removed. The upper side of the sliding groove has several positioning grooves, and the lower side has a T-shaped groove. A slider is embedded in the sliding groove, and a groove is provided in the middle of the slider. An I-shaped hook is provided, one end of which is embedded in the groove, and the other end can rotate around the end of the groove. However, the hooks of this type of buckle are attached to the crossbar of the bicycle frame by the elastic force of the torsion spring. During riding, they will wobble and make abnormal noises, which will reduce the riding experience and shorten the product's lifespan. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technical problems by providing a side-hanging bag buckle that is secure, durable, and easy to attach.

[0005] To address the aforementioned technical problems, the present invention provides the following technical solution: a bicycle side bag fastener, comprising a horizontal plate, hook assemblies, and a fixing device; the hook assemblies are provided in two parts, respectively fastened to both ends of the horizontal plate, and the fixing device is located below the horizontal plate; a guide rib is provided on each of the upper and lower sides of the horizontal plate; several limiting holes are provided on the lower part of the horizontal plate, and several horizontal plate rivet holes are provided in the middle part of the horizontal plate, each horizontal plate rivet hole accommodating a rivet to rivet the horizontal plate to the side bag base plate.

[0006] The hook assembly includes a female buckle, a male buckle, a rotating hook, a locking plate assembly, and a positioning buckle. The upper part of the female buckle has a female buckle cavity and a locking plate cavity. The rear part of the rotating hook is rotatably disposed in the female buckle cavity, and the locking plate assembly is slidably disposed in the locking plate cavity. The lower part of the female buckle has a guide groove and a positioning buckle fitting groove. The guide groove engages with the guide ribs on the upper and lower sides of the horizontal plate to slidably install the female buckle at both ends of the horizontal plate. The positioning buckle is fitted into the positioning buckle fitting groove. The male buckle is fastened to the side of the female buckle and cooperates with the female buckle to limit the position of the rotating hook, the locking plate assembly, and the positioning buckle.

[0007] The female buckle cavity has a first rotating shaft hole and a first locking pin hole on one side of its upper part. The male buckle has a second rotating shaft hole and a second locking pin hole on one side of its upper part. The upper rear part of the rotating hook has a third rotating shaft hole and a third locking pin hole. The rear part of the rotating hook is embedded in the female buckle cavity, and the male buckle is fastened to the side of the female buckle. A rotating shaft passes through the first rotating shaft hole, the third rotating shaft hole, and the second rotating shaft hole in sequence to fix the rear part of the rotating hook in the female buckle cavity and allow it to rotate around the rotating shaft. A locking pin passes through the first locking pin hole, the third locking pin hole, and the second locking pin hole in sequence. The locking pin hole limits the rotation of the rotating hook. After the locking pin is pulled out, the rotating hook can rotate. A torsion spring retaining groove is provided on the outer side of the second rotating shaft hole inside the male buckle, and a torsion spring is embedded in the torsion spring retaining groove. One end of the spring acts on the male buckle, and the other end acts on the rotating hook. Under the action of the torsion spring, the rotating hook rotates outward towards the female buckle cavity, opening the hook body. A limiting block is provided at the bottom of the female buckle cavity, and a limiting surface is provided on the lower rear side of the rotating hook. When the rotating hook is fully opened, the limiting surface presses against the limiting block. This limits the maximum rotation position of the rotating hook. The female buckle has a first hook groove on its outer side, and the male buckle has a second hook groove symmetrical to the first hook groove at a position corresponding to the female buckle. The rotating hook has a third hook groove located between the first and second hook grooves. When the rotating hook is fully open, the opening below the third hook groove opens. After the third hook groove engages with the bicycle frame crossbar, it rotates inward to close the opening until it coincides with the first and second hook grooves to form a closed circle. The hole completely surrounds the bicycle frame crossbar. Under upward pulling force, the third hook groove rotates outward to open, until it disengages from the first and second hook grooves to form a closed circular hole, allowing the bag to be completely removed from the bicycle frame crossbar. The inner wall of the third hook groove of the rotating hook is provided with an n-shaped gasket fitting groove, and an n-shaped gasket is provided. The outer center of the gasket has a protruding positioning rib. The positioning rib is fixed in the n-shaped gasket fitting groove. By adjusting the thickness of the gasket, the rotating hook can be hooked onto the bicycle frame crossbar of the corresponding diameter.

[0008] The locking plate assembly includes a locking plate, a limiting pin, and a locking spring. The limiting pin has a limiting ring at its upper part and a spring insert at its lower part. The locking plate has a strap hole at its upper part and a spring groove in its middle part. The lower rear side of the rotating hook has a locking groove. The side of the locking plate cavity has a first locking plate groove, and the upper side of the locking plate cavity has a limiting pin groove. The inner side of the male buckle has a second locking plate groove. The two sides of the locking plate are respectively inserted into the first locking plate groove and the second locking plate groove and can slide in the groove. The locking spring is embedded outside the spring insert at the lower part of the limiting pin. The upper end of the locking spring abuts against the lower part of the limiting ring, and the lower end of the locking spring abuts against the bottom of the spring groove. The limiting pin is inserted into the limiting pin groove. The lower end of the locking plate is embedded in the locking groove under the action of the locking spring, locking the rotating hook. A strap passes through the strap hole. When the strap is pulled upward, the locking plate slides upward, and the lower end of the locking plate disengages from the locking groove. The rotating hook can then rotate outward of the female buckle cavity under the action of the torsion spring.

[0009] The female buckle has a positioning rib groove inside its cavity and a positioning convex surface on its side. The male buckle has a positioning rib at its upper part and a positioning concave surface at its lower part. The positioning rib is inserted into the positioning rib groove to define the relative positions of the upper parts of the male and female buckles. The positioning concave surface and the positioning convex surface cooperate to define the relative positions of the lower parts of the male and female buckles. The male buckle has a fastening plate at its upper part, a fastening block at its lower side, a fastening strip at its lower part, and a fastening hook at its end. The female buckle has a fastening baffle at its upper part, a fastening groove at its lower side, a fastening hole in its middle part, and a fastening hook groove inside the fastening hole. The fastening block is embedded in the fastening groove, the fastening strip is embedded in the fastening hole, and the fastening hook is secured in the fastening hook groove. The male buckle is secured to the side of the female buckle by the cooperation of the fastening block, the fastening strip, and the fastening hook with the corresponding fastening groove, fastening hole, and fastening hook groove of the female buckle.

[0010] The positioning buckle has a positioning shaft at the top, a limiting tenon in the middle of the rear side, a positioning block at the bottom, and an anti-detachment plate above the positioning block. The positioning buckle fitting groove at the lower part of the female buckle has a positioning shaft fitting groove. The guide groove is embedded outside the guide rib and can slide left and right relative to each other to be removed. The positioning buckle is embedded in the positioning buckle fitting groove, and the positioning shaft can rotate in the positioning shaft fitting groove. The limiting tenon is embedded in the limiting hole to limit the position of the hook assembly. The female buckle has a positioning buckle limiting rib that cooperates with the positioning block to prevent the positioning buckle from loosening. The female buckle has a first positioning buckle block, and the male buckle has a second positioning buckle block. Before the male buckle and the female buckle are engaged, the positioning buckle can rotate laterally to fit into the positioning buckle fitting groove. After the male buckle and the female buckle are engaged, the two positioning buckle blocks and the anti-detachment plate cooperate to limit the rotation angle of the positioning buckle. The positioning buckle cannot rotate completely to the side, thus ensuring that the positioning buckle will not slide out of the positioning buckle fitting groove.

[0011] The fixing device includes a base, a hook, and a slider. The upper part of the base is provided with a sliding groove, the upper end of which is provided with a plurality of positioning grooves, and the lower end of which is provided with a hook engagement groove. The base has a base rivet hole on each side and the lower side, and each base rivet hole can accommodate a rivet to fix the base to the side hanging bag base plate. The upper end of the hook is provided with a hook rotation shaft, and the middle part of the hook rotation shaft is provided with a sliding groove limiting tenon. The slider is embedded in the sliding groove and can slide left and right relative to each other. The middle part of the slider is provided with a T-shaped groove, and the hook rotation shaft is embedded in the T-shaped groove. The hook can rotate in the T-shaped groove. The sliding groove limiting tenon is embedded in the positioning groove to limit its sliding position. When the hook is not used, the hook is embedded in the hook engagement groove to make the surface of the fixing device flat and easy to carry.

[0012] The hook assembly of this invention is fastened to both ends of a horizontal plate, and the fixing device is located below the horizontal plate. In use, removing the locking pin and pulling the strap disengages the locking piece from the locking groove. Continuing to pull upwards, the rotating hook automatically rotates out of the female buckle cavity under the action of the torsion spring and the eccentric third rotating shaft hole, making it easy to remove. When fastening is required, after the third hook groove is hooked onto the bicycle frame crossbar, it automatically engages under gravity. The bottom of the locking piece embeds into the locking groove to lock the rotating hook, preventing wobbling. The rotating hook can be further secured with a locking pin. This invention enhances the stability of the buckle during use and simultaneously improves the convenience of removing and fastening side-hanging bags. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the hook-related parts of the present invention;

[0015] Figure 2 This is another perspective schematic diagram of the hook-related parts of the present invention;

[0016] Figure 3 This is a schematic diagram of the disassembled state of the hook component of the present invention;

[0017] Figure 4 This is a schematic diagram of the hook component of the present invention from another perspective in its disassembled state;

[0018] Figure 5 This is a schematic diagram of the fixing device of the present invention;

[0019] Figure 6 This is a schematic diagram of the disassembled state of the fixing device of the present invention;

[0020] Figure 7 This is a schematic diagram of the disassembled state of the fixing device of the present invention from another perspective;

[0021] Figure 8This is a front view schematic diagram of the hook component of the present invention;

[0022] Figure 9 yes Figure 8 Schematic diagram of the AA section.

[0023] The labels in the diagram indicate:

[0024] 1-Horizontal plate, 11-Horizontal plate rivet hole, 12-Limiting hole, 13-Guide rib;

[0025] 2-Hook assembly,

[0026] 21-Female buckle, 210-First hook groove, 211-Female buckle cavity, 2111-First rotating shaft hole, 2112-First locking pin hole, 2113-Limiting block, 2114-Positioning rib groove, 212-Locking piece cavity, 2121-First locking piece groove, 2122-Limiting pin groove, 213-Guide groove, 214-Positioning buckle fitting groove, 2141-Positioning shaft fitting groove, 215-Positioning convex surface, 216-Fitting baffle, 2161-Fitting groove, 217 - Snapping hole, 2171 - Snapping hook groove, 218 - Positioning buckle limiting rib, 219 - First positioning buckle stop block, 22 - Male buckle, 220 - Second hook groove, 221 - Second rotating shaft hole, 222 - Second locking pin hole, 223 - Torsion spring retaining groove, 224 - Second locking piece groove, 225 - Positioning rib, 226 - Positioning concave surface, 227 - Snapping plate, 2271 - Snapping block, 228 - Snapping strip, 2281 - Snapping hook, 229 - Second positioning buckle stop block

[0027] 23-Rotating hook, 230-Third hook groove, 231-Third rotating shaft hole, 232-Third locking pin hole, 233-Limiting surface, 234-Wash fitting groove, 235-Locking groove.

[0028] 24-Locking plate assembly, 241-Locking plate, 2411-Ladder hole, 2412-Spring slot, 242-Limit pin, 2421-Limit ring, 2422-Spring insert, 243-Locking spring.

[0029] 25-Positioning buckle, 251-Positioning shaft, 252-Limiting tenon, 253-Positioning stop, 254-Anti-detachment stop plate;

[0030] 26 - Rotating shaft, 27 - Locking pin, 28 - Torsion spring, 29 - Washer, 291 - Positioning rib

[0031] 3-Fixing device, 31-Base, 311-Slide groove, 312-Positioning groove, 313-Hook fitting groove, 314-Base rivet hole, 32-Hook, 321-Hook rotating shaft, 3211-Slide groove limiting tenon, 33-Slider, 331-T-slot. Detailed Implementation

[0032] The following is combined Figures 1 to 8 The invention will be further illustrated by the figures and specific embodiments.

[0033] The present invention can be implemented in the following manner: a bicycle side bag fastener includes a horizontal plate 1, a hook assembly 2, and a fixing device 3; the hook assembly 2 is provided in two parts, which are respectively fastened to both ends of the horizontal plate 1, and the fixing device 3 is provided below the horizontal plate 1; a guide rib 13 is provided on the upper and lower sides of the horizontal plate 1; several limiting holes 12 are provided on the lower part of the horizontal plate 1, and several horizontal plate rivet holes 11 are provided on the middle part of the horizontal plate 1, each horizontal plate rivet hole 11 can accommodate a rivet to rivet the horizontal plate to the side bag base plate.

[0034] The hook assembly 2 includes a female buckle 21, a male buckle 11, a rotating hook 23, a locking plate assembly 24, and a positioning buckle 25. The female buckle 21 has a female buckle cavity 211 and a locking plate cavity 212 at its upper part. The rear part of the rotating hook 3 is rotatably disposed in the female buckle cavity 211, and the locking plate assembly 24 is slidably disposed in the locking plate cavity 212. The female buckle 21 has a guide groove 213 and a positioning buckle fitting groove 214 at its lower part. The guide groove 213 fits into the guide ribs 13 on the upper and lower sides of the horizontal plate 1, so that the female buckle 21 can be slidably installed at both ends of the horizontal plate 1. The positioning buckle 25 is fitted into the positioning buckle fitting groove 214. The male buckle 11 is fastened to the side of the female buckle 21 and cooperates with the female buckle 21 to limit the position of the rotating hook 23, the locking plate assembly 24, and the positioning buckle 25.

[0035] The female buckle cavity 211 has a first rotating shaft hole 2111 and a first locking pin hole 2112 on one side of its upper part. The male buckle 22 has a second rotating shaft hole 221 and a second locking pin hole 222 on one side of its upper part. The rotating hook 23 has a third rotating shaft hole 231 and a third locking pin hole 232 on its upper rear part. The rear part of the rotating hook 23 is embedded in the female buckle cavity 211, and the male buckle 22 is fastened to the side of the female buckle 21. A rotating shaft 26 passes through the first rotating shaft hole 2111, the third rotating shaft hole 231, and the second rotating shaft hole 221 in sequence to fix the rear part of the rotating hook 23 in the female buckle cavity 211 and allow it to rotate around the rotating shaft 26. A locking pin 27 passes through the first locking pin hole 211 in sequence. 2. The third locking pin hole 232 and the second locking pin hole 222 can limit the rotation of the rotating hook 23. After the locking pin 27 is pulled out, the rotating hook 23 can rotate. A torsion spring retaining groove 223 is provided on the outside of the second rotating shaft hole 221 inside the male buckle 22. A torsion spring 28 is embedded in the torsion spring retaining groove 223. One end of the spring acts on the male buckle 22, and the other end acts on the rotating hook 23. Under the action of the torsion spring 28, the rotating hook 23 rotates outward towards the female buckle cavity 211 to open the hook body. A limiting block 2113 is provided at the bottom of the female buckle cavity 211, and a limiting surface 233 is provided on the lower rear side of the rotating hook 23. When the rotating hook 23 is fully opened... When the limiting surface 233 presses against the limiting block 2113, the maximum rotation position of the rotating hook 23 can be limited. The outer side of the female buckle 21 is provided with a first hook groove 210, and the male buckle 22 is provided with a second hook groove 220 symmetrical to the first hook groove 210 at the position corresponding to the female buckle 21. The rotating hook 23 is provided with a third hook groove 230, which is located between the first hook groove 210 and the second hook groove 220. When the rotating hook 23 is fully opened, the opening below the third hook groove 230 opens. After the third hook groove 230 is engaged with the bicycle frame crossbar, the third hook groove 230 rotates inward to close the opening until it is engaged with the first hook groove 210 and the second hook groove 220. The second hook groove 220 overlaps to form a closed circular hole, completely surrounding the bicycle frame crossbar. Under the upward pulling force, the third hook groove 230 rotates outward to open its opening until it disengages from the first hook groove 210 and the second hook groove 220 to form a closed circular hole, allowing the bag to be completely removed from the bicycle frame crossbar. The inner wall of the third hook groove 230 of the rotating hook 23 is provided with an n-shaped gasket fitting groove 234, and an n-shaped gasket 29 is provided. The outer center of the gasket 29 has a protruding positioning rib 291. The positioning rib 291 is fixed in the n-shaped gasket fitting groove 234. By adjusting the thickness of the gasket 29, the rotating hook 23 can be firmly hooked onto the bicycle frame crossbar of the corresponding diameter.

[0036] The locking plate assembly 24 includes a locking plate 241, a limiting pin 242, and a locking spring 243. The limiting pin 242 has a limiting ring 2421 at its upper part and a spring insert 2422 at its lower part. The locking plate 241 has a strap hole 2411 at its upper part and a spring insert 2412 in the middle. The lower rear side of the rotating hook 23 has a locking groove 235. The side of the locking plate cavity 212 has a first locking plate groove 2121, and the upper side of the locking plate cavity 212 has a limiting pin groove 2122. The inner side of the male buckle 22 has a second locking plate groove 224. The two sides of the locking plate 241 are respectively inserted into the first locking plate groove 2121 and the second locking plate groove 224 and can be in the groove. Sliding; the locking spring 243 is embedded outside the spring insert 2422 at the lower part of the limiting pin 242, the upper end of the locking spring 243 presses against the lower part of the limiting ring 2421, and the lower end of the locking spring 243 presses against the bottom of the spring insert 2412; the limiting pin 242 is stuck in the limiting pin groove 2122, and the lower end of the locking piece 241 is embedded in the locking groove 235 under the action of the locking spring 243, locking the rotating hook 23; a strap is inserted through the strap hole 2411, and when the strap is pulled upward, the locking piece 241 slides upward, the lower end of the locking piece 241 disengages from the locking groove 235, and the rotating hook 23 can rotate outward of the female buckle cavity 211 under the action of the torsion spring 28.

[0037] The female buckle 21 has a positioning rib groove 2114 inside its female buckle cavity 211, and a positioning protrusion 215 on its side. The male buckle 22 has a positioning rib 225 on its upper part and a positioning concave surface 226 on its lower part. The positioning rib 225 is inserted into the positioning rib groove 2114 to limit the relative position of the upper parts of the male buckle 22 and the female buckle 21. The positioning concave surface 226 and the positioning protrusion 215 cooperate to limit the relative position of the lower parts of the male buckle 22 and the female buckle 21. The male buckle 22 has a fastening plate 227 on its upper part, a fastening block 2271 on its lower side, and a fastening strip 228 on its lower part. A buckle is provided at the end of the fastening strip 228. The female buckle 21 has a fastening baffle 216 on its upper part and a fastening groove 2161 on its lower side. The female buckle 21 has a fastening hole 217 in the middle and a fastening hook groove 2171 inside the fastening hole 217. The fastening block 2271 is embedded in the fastening groove 2161, the fastening strip 228 is embedded in the fastening hole 217, and the fastening hook 2281 is fixed in the fastening hook groove 2171. The male buckle 22 is fastened to the side of the female buckle 21 by the fastening block 2271, the fastening strip 228, and the fastening hook 2281 respectively cooperating with the corresponding fastening groove 2161, fastening hole 217, and fastening hook groove 2171 of the female buckle 21.

[0038] The positioning buckle 25 has a positioning shaft 251 at its top, a limiting tenon 252 in the middle of its rear side, and a positioning block 253 at its bottom. An anti-detachment plate 254 is located above the positioning block. The guide groove 213 is embedded in the guide rib 13 and can slide left and right relative to each other to be removed. The lower part of the female buckle 21 has a positioning buckle fitting groove 2141 at its end. The positioning buckle 25 is embedded in the positioning buckle fitting groove 2141, and the positioning shaft 251 can rotate within the positioning shaft fitting groove 2141. The limiting tenon 252 is embedded in the limiting hole 12 to limit the position of the hook assembly 2. The lower part of buckle 21 is provided with a positioning buckle limiting rib 218, which cooperates with the positioning block 253 to prevent the positioning buckle 25 from loosening. The female buckle 21 is provided with a first positioning buckle block 219, and the male buckle 22 is provided with a second positioning buckle block 229. Before the male buckle 22 and the female buckle 21 are fastened, the positioning buckle 25 can be rotated laterally and inserted into the positioning buckle fitting groove 214. After the male buckle 22 and the female buckle 21 are fastened, the two positioning buckle blocks cooperate with the anti-loosening plate 254 to limit the rotation angle of the positioning buckle 25, and the positioning buckle 25 cannot be rotated completely to the side, thereby ensuring that the positioning buckle 25 will not slide out of the positioning buckle fitting groove 214.

[0039] The fixing device 3 includes a base 31, a hook 32, and a slider 33; the base 31 has a sliding groove 311 on its upper part, a plurality of positioning grooves 312 at the upper end of the sliding groove 311, and a hook fitting groove 313 at the lower end of the sliding groove 311; the base 31 has a base rivet hole 314 on each side and the lower side, and each base rivet hole 314 can accommodate a rivet to rivet the base to the side hanging bag base plate; the hook 32 has a hook rotating shaft 321 at its upper end, and a hook rotating shaft 321 has a middle part The device has a sliding groove limiting tenon 3211; the slider 33 is embedded in the sliding groove 311 and can slide left and right relative to each other. The slider 33 has a T-shaped groove 331 in the middle. The rotating shaft of the hook 32 is embedded in the T-shaped groove 331, and the hook 32 can rotate in the T-shaped groove 331. The sliding groove limiting tenon 3211 is embedded in the positioning groove 312 to limit its sliding position. When the hook 32 is not needed, the hook 32 is embedded in the hook fitting groove 313 to make the surface of the fixing device 3 flat and easy to carry.

[0040] The hook assembly 2 of this invention is fastened to both ends of the horizontal plate 1, and the fixing device 3 is located below the horizontal plate. In use, by removing the locking pin 27 and pulling the strap, the locking piece 241 can be disengaged from the locking groove 235. When pulling upwards, the rotating hook 23 automatically rotates out of the female buckle cavity 211 under the action of the torsion spring 28 and the eccentric third rotating shaft hole 231, making it easy to remove. When fastening is required, after the third hook groove 230 is hooked onto the bicycle frame crossbar, it will automatically fasten under the action of gravity. The bottom of the locking piece 241 is embedded in the locking groove 235 to lock the rotating hook 23 without causing shaking. The locking pin 27 can be used to further lock the rotating hook 23. This invention enhances the firmness of the buckle during use and also improves the convenience of taking out and fastening the side bag.

Claims

1. A bicycle side bag fastener, comprising a horizontal plate, hook assemblies, and a fixing device; wherein two hook assemblies are provided, respectively fastened to both ends of the horizontal plate, and the fixing device is provided below the horizontal plate; a guide rib is provided on each of the upper and lower sides of the horizontal plate; several limiting holes are provided on the lower part of the horizontal plate, and several horizontal plate rivet holes are provided in the middle part of the horizontal plate to fix the horizontal plate to the bicycle side bag base plate, characterized in that: The hook assembly comprises a female buckle, a male buckle, a rotating hook, a locking piece assembly and a positioning buckle; the upper part of the female buckle is provided with a female buckle cavity and a locking piece cavity, the rear part of the rotating hook is rotatably arranged in the female buckle cavity, and the locking piece assembly is slidably arranged in the locking piece cavity; the lower part of the female buckle is provided with a guide groove and a positioning buckle fitting groove, the guide groove is fitted with guide ribs on the upper and lower sides of the horizontal plate, and the female buckle is slidably arranged at the two ends of the horizontal plate; the positioning buckle is fitted in the positioning buckle fitting groove; the male buckle is buckled on the side edge of the female buckle, and cooperates with the female buckle to limit the positions of the rotating hook, the locking piece assembly and the positioning buckle; the upper part of the female buckle cavity is provided with a first rotating shaft hole and a first locking pin hole on one side, the upper part of the male buckle is provided with a second rotating shaft hole and a second locking pin hole on one side, and the rear part of the rotating hook is provided with a third rotating shaft hole and a third locking pin hole on the upper side; the rear part of the rotating hook is embedded in the female buckle cavity, the male buckle is buckled on the side edge of the female buckle, a rotating shaft is arranged to pass through the first rotating shaft hole, the third rotating shaft hole and the second rotating shaft hole in sequence, the rear part of the rotating hook is fixed in the female buckle cavity and can rotate around the rotating shaft, and a locking pin is arranged to pass through the first locking pin hole, the third locking pin hole and the second locking pin hole in sequence to limit the rotation of the rotating hook; after the locking pin is pulled out, the rotating hook can rotate; a torsional spring embedding groove is arranged outside the second rotating shaft hole on the inner side of the male buckle, and a torsional spring is embedded in the torsional spring embedding groove; one end of the torsional spring is arranged to act on the male buckle, and the other end of the torsional spring is arranged to act on the rotating hook; under the action of the torsional spring, the rotating hook rotates outward of the female buckle cavity to open the hook body; the locking piece assembly comprises a locking piece, a limiting pin and a locking spring, the upper part of the limiting pin is provided with a limiting ring, and the lower part of the limiting pin is provided with a spring embedding column; the upper part of the locking piece is provided with a belt hole, the middle part of the locking piece is provided with a spring embedding groove, the lower side of the rear part of the rotating hook is provided with a locking groove, the side of the locking piece cavity is provided with a first locking piece groove, and the upper side of the locking piece cavity is provided with a limiting pin groove; the inner side of the male buckle is provided with a second locking piece groove, the locking piece is respectively clamped into the first locking piece groove and the second locking piece groove and can slide in the grooves, the locking spring is embedded outside the spring embedding column of the lower part of the limiting pin, the upper end of the locking spring is pressed against the limiting ring, the lower end of the locking spring is pressed against the bottom of the spring embedding groove, the limiting pin is clamped in the limiting pin groove, the lower end of the locking piece is embedded in the locking groove under the action of the locking spring, and the rotating hook is locked; a belt is arranged to pass through the belt hole, when the belt is pulled upward, the locking piece slides upward, the lower end of the locking piece is separated from the locking groove, and the rotating hook can rotate outward of the female buckle cavity under the action of the torsional spring.

2. A side pannier fastener for a bicycle as claimed in claim 1, wherein: The bottom of the female buckle cavity is provided with a limiting block, and the lower side of the rear part of the rotating hook is provided with a limiting surface; when the rotating hook is completely opened, the limiting surface presses against the limiting block to limit the maximum rotating position of the rotating hook.

3. A side pannier buckle for a bicycle as defined in claim 1, wherein: The female buckle is provided with a first hook slot outside, the male buckle is provided with a second hook slot symmetrical to the first hook slot at a position corresponding to the female buckle, the rotating hook is provided with a third hook slot, the third hook slot is located between the first hook slot and the second hook slot, and the third hook slot coincides with the first hook slot and the second hook slot to form a closed round hole, which completely surrounds the bicycle frame crossbar; the third rotating shaft hole is located outside the center line of the third hook slot, and the third hook slot is opened downward when the rotating hook is fully opened.

4. A side pannier buckle for a bicycle as claimed in claim 3, wherein: The inner wall of the third hook slot of the rotating hook is provided with an n-shaped gasket fitting groove, an n-shaped gasket is arranged, and a positioning rib is protruded on the middle part of the outer side of the gasket; the positioning rib is clamped in the n-shaped gasket fitting groove, and the thickness of the gasket can be adjusted to hang the rotating hook on the bicycle frame crossbar with a corresponding diameter.

5. A side pannier buckle for a bicycle as defined in claim 1, wherein: The female buckle cavity of the female buckle is provided with a positioning rib clamping groove, the side edge of the female buckle is provided with a positioning convex surface, the upper part of the male buckle is provided with a positioning rib, and the lower part of the male buckle is provided with a positioning concave surface; the positioning rib is inserted into the positioning rib clamping groove to limit the relative position of the upper part of the male buckle and the female buckle, and the positioning concave surface and the positioning convex surface cooperate to limit the relative position of the lower part of the male buckle and the female buckle.

6. A side pannier buckle for a bicycle as defined in claim 1, wherein: The upper part of the male buckle is provided with a buckling plate, the lower side of the buckling plate is provided with a buckling block, the lower part of the male buckle is provided with a buckling strip, and the end of the buckling strip is provided with a buckling hook; the upper part of the female buckle is provided with a buckling baffle, the lower side of the buckling baffle is provided with a buckling slot, the middle part of the female buckle is provided with a buckling hole, and the buckling hole is provided with a buckling hook slot; the buckling block is embedded in the buckling slot, the buckling strip is embedded in the buckling hole, and the buckling hook is clamped in the buckling hook slot; the male buckle is buckled to the side edge of the female buckle through the cooperation of the buckling block, the buckling strip and the buckling hook with the corresponding buckling slot, buckling hole and buckling hook slot of the female buckle.

7. A side pannier buckle for a bicycle as defined in claim 1, wherein: The top end of the positioning buckle is provided with a positioning shaft, the middle part of the rear side is provided with a limiting tenon, the bottom is provided with a positioning stopper, and the top of the positioning stopper is provided with an anti-falling stopper; the end of the positioning buckle fitting groove of the lower part of the female buckle is provided with a positioning shaft fitting groove, the guide groove is embedded outside the guide rib and can slide left and right to be taken out, the positioning buckle is embedded in the positioning buckle fitting groove, the positioning shaft can rotate in the positioning shaft fitting groove, and the limiting tenon is embedded in the limiting hole to limit the position of the hook assembly; the positioning buckle limiting rib on the lower part of the female buckle cooperates with the positioning stopper to prevent the positioning buckle from loosening, the first positioning buckle stopper is arranged on the female buckle, the second positioning buckle stopper is arranged on the male buckle, the positioning buckle can be laterally rotated and embedded in the positioning buckle fitting groove before the male buckle is buckled with the female buckle, and the two positioning buckle stoppers cooperate with the anti-falling stopper after the male buckle is buckled with the female buckle to limit the rotation angle of the positioning buckle, thereby ensuring that the positioning buckle will not slide out of the positioning buckle fitting groove.

8. A side pannier buckle for a bicycle as defined in claim 1, wherein: The fixing device comprises a base, a hook and a sliding block; the upper part of the base is provided with a sliding groove, the upper end of the sliding groove is provided with a plurality of positioning grooves, the lower end of the sliding groove is provided with a hook fitting groove, the two sides and the lower side of the base are each provided with a base rivet hole, one rivet can be accommodated in each base rivet hole to rivet the base to the side hanging bag base plate; the upper end of the hook is provided with a hook rotating shaft, the middle part of the hook rotating shaft is provided with a sliding groove limiting tenon; the sliding block is embedded in the sliding groove and can slide left and right relative to each other, the middle part of the sliding block is provided with a T-shaped groove, the hook rotating shaft is embedded in the T-shaped groove, the hook can rotate in the T-shaped groove, the sliding groove limiting tenon is embedded in the positioning groove to define the sliding position thereof, and the hook can be embedded in the hook fitting groove.

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