Bicycle seat tube

Abstract

The utility model discloses a bicycle saddle tube which comprises a supporting tube, a saddle tube body and a clamping piece structure used for installing a bicycle saddle, one end of the saddle tube body is connected with one end of the supporting tube, the clamping piece structure is detachably installed on the saddle tube body, and the saddle tube body and the supporting tube are integrally formed. The tail lamp is detachably mounted at the other end of the seat tube body; one end of the seat tube body is provided with an inserting groove, the other end of the seat tube body is provided with an inserting groove, the tail lamp is movably inserted into the inserting groove, the tail lamp is partially located outside the inserting groove and abuts against the other end of the seat tube body, the bottom of the inserting groove is provided with an iron sheet, the tail lamp is provided with a magnet, and the magnet abuts against the iron sheet and is attracted with the iron sheet. According to the bicycle tail lamp, the machining steps are simplified, the machining cost is reduced, the appearance is attractive, the reminding effect on rear vehicles can be achieved during riding, meanwhile, when the tail lamp is damaged, the tail lamp is convenient to replace, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bicycle, concretely relates to a bicycle seat tube. BACKGROUND

[0002] The support pipe and the seat tube body of the bicycle seat tube of the prior art need to be separately manufactured and shaped, and then the one end of the seat tube body is connected with the one end of the support pipe through welding, so that the processing steps are more, the processing cost is high, and the appearance is not beautiful. And the bicycle seat tube with the structure generally does not set up a tail light, cannot play a reminding role to the rear vehicle when riding, and rear-end collision accidents are prone to occur in the case of night or bad rainy days. There are also some bicycle seat tubes on the market, which are provided with a tail light at the other end of the seat tube body, but the tail light is generally not detachable, and the tail light is not convenient to replace when the tail light is damaged, and the use is not convenient. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides a bicycle seat tube, which simplifies the processing steps, reduces the processing cost, has an attractive appearance, and can remind the rear vehicle when riding, and the tail light is convenient to replace when damaged, and the use is convenient.

[0004] The utility model solves the technical scheme that it adopts:

[0005] A bicycle seat tube, including support pipe, seat tube body and the clamping piece structure for installing bicycle cushion, one end of the seat tube body is connected with one end of the support pipe, the clamping piece structure is detachable and installs on the seat tube body, the seat tube body and support pipe integrated, still include detachable and install the tail light of the other end of the seat tube body, the other end of the seat tube body is equipped with the insertion slot, the tail light is inserted in the insertion slot, the tail light part is located the outside of the insertion slot and with the other end of the seat tube body and resists, the bottom of the insertion slot is equipped with the iron sheet, the tail light is equipped with magnet, the magnet with the iron sheet and resists and is inhaled with iron sheet.

[0006] As a preferred technical scheme, the tail lamp comprises a lamp shell, a transparent lampshade, a PCBA board, a battery, a lamp plate and a ring-shaped LED lamp, the lamp shell comprises a hollow lamp shell body and a lamp shell closed part formed at one end of the lamp shell body, the transparent lampshade comprises a hollow lampshade body and a lampshade closed part formed at one end of the lampshade body, the lamp shell body is movably inserted into the lampshade body, the inside of the lamp shell body and the inside of the lampshade body are communicated to form a mounting cavity, one end of the lamp shell closed part close to the lamp shell body is abutted against the other end of the lampshade body, the lampshade body and the lamp shell closed part are movably inserted into the insertion slot, the lampshade closed part is located outside the insertion slot and one end of the lampshade closed part close to the lampshade body is abutted against the other end of the seat pipe body, one end of the lamp shell closed part away from the lamp shell body is formed with a ring-shaped boss, the magnet is arranged in the ring-shaped boss, the magnet partially protrudes from one end of the ring-shaped boss away from the lamp shell closed part, the battery and the lamp plate are sequentially arranged in the mounting cavity in a direction away from the magnet, the PCBA board is located between the battery and the lamp plate and is fixed on the side of the lamp plate close to the battery, the ring-shaped LED lamp is arranged on the side of the lamp plate away from the battery and close to the lampshade closed part, and the battery and the ring-shaped LED lamp are electrically connected with the PCBA board.

[0007] As a preferred technical scheme, the battery is a rechargeable battery, the tail lamp further comprises a charging interface, the charging interface is arranged on the side of the PCBA board close to the battery and is electrically connected with the PCBA board, an avoiding position corresponding to the charging interface is arranged on the outer wall of the lamp shell body and is communicated with the mounting cavity, an installation position communicated with the avoiding position is arranged on the outer wall of the lampshade body, the charging interface partially penetrates through the avoiding position and is arranged in the installation position, and the charging interface is electrically connected with the PCBA board.

[0008] As a preferred technical scheme, the tail lamp further comprises a key and a key cap, the key cap comprises a hollow cap body and a key column, one end of the lampshade closed part away from the lampshade body is provided with a recessed groove, the recessed groove is communicated with the mounting cavity, the cap body is located on the inner side of the ring-shaped LED lamp, one end of the cap body is abutted against the side of the lamp plate away from the battery, the other end of the cap body extends out of the recessed groove and is formed with a pressing part, the key column is located in the inside of the cap body and one end of the key column is connected with the end of the pressing part close to the cap body, the end of the pressing part away from the cap body is provided with an inner recessed pressing position, the key is arranged on the side of the PCBA board away from the battery and is electrically connected with the PCBA board, the key is located in the avoiding position of the lamp plate and the cap body and is abutted against the other end of the key column.

[0009] As a preferred technical scheme, an outer wall of one end of the cap body is formed with a first annular extension part, the first annular extension part is located at an inner side of the annular LED lamp, an end of the lamp cover closing part close to the lamp cover body is formed with a second annular extension part, the second annular extension part is sleeved on an outer periphery of the cap body, and the first annular extension part is clamped between the lamp panel and the second annular extension part.

[0010] As a preferred technical scheme, an outer wall of the lamp cover body is formed with two protruding parts, the two protruding parts are symmetrically arranged about an axis of the tail lamp, one end of the protruding part is connected with an end of the lamp cover closing part close to the lamp cover body, an outer wall of the seat pipe body is provided with two recesses corresponding to the two protruding parts respectively, the two recesses respectively extend to the other end of the seat pipe body and are respectively communicated with the plug-in slots, the two protruding parts are respectively matched with the two recesses, a recessed position is arranged on a side of the protruding part away from the lamp cover body, a plurality of convex edges are arranged on a bottom of the recessed position, and the plurality of convex edges are arranged in an interval along an axial direction of the tail lamp.

[0011] As a preferred technical scheme, an outer wall of the lamp cover body is formed with a first annular extension part, the first annular extension part is located at an inner side of the annular LED lamp, an end of the lamp cover closing part close to the lamp cover body is formed with a second annular extension part, the second annular extension part is sleeved on an outer periphery of the cap body, and the first annular extension part is clamped between the lamp panel and the second annular extension part.

[0012] As a preferred technical scheme, the clamping piece structure comprises an upper clamping piece, a lower clamping piece, a screw rod and a cushion block, the upper clamping piece is located above the lower clamping piece, the lower clamping piece is located above the seat tube body, the bottom end of the lower clamping piece is provided with a lower clamping piece clamping groove, the lower clamping piece clamping groove is clamped with the seat tube body, the bottom end of the upper clamping piece is provided with two upper clamping piece mounting grooves at two sides respectively, the top end of the lower clamping piece is provided with two lower clamping piece mounting grooves at two sides respectively, and the two lower clamping piece mounting grooves correspond to the two upper clamping piece mounting grooves respectively; one end of the seat tube body is provided with a concave cavity, the concave cavity is communicated with the plug-in groove, the top end and the bottom end of the outer wall of the seat tube body are respectively provided with a first strip-shaped hole and a second strip-shaped hole communicated with the concave cavity, one end of the first strip-shaped hole and the second strip-shaped hole extends towards the end of the seat tube body, and the other end of the first strip-shaped hole and the second strip-shaped hole extends towards the other end of the seat tube body, the upper clamping piece is provided with an upper clamping piece mounting hole penetrating through the top end and the bottom end of the upper clamping piece, the lower clamping piece is provided with a lower clamping piece mounting hole penetrating through the top end and the bottom end of the lower clamping piece, the upper clamping piece mounting hole and the lower clamping piece mounting hole are corresponded to the first strip-shaped hole, the screw rod is mounted in the second strip-shaped hole, the concave cavity, the first strip-shaped hole, the lower clamping piece mounting hole and the upper clamping piece mounting hole, the internal thread of the inner wall of the upper clamping piece mounting hole and the internal thread of the inner wall of the lower clamping piece mounting hole are threadedly matched with the external thread of the screw rod, the cushion block is provided with a cushion block through hole penetrating through the top end and the bottom end of the cushion block, the cushion block is sleeved on the outer periphery of the screw rod through the cushion block through hole, the internal thread of the inner wall of the cushion block through hole is threadedly matched with the external thread of the screw rod, the cushion block is located below the seat tube body and between the seat tube body and the head of the screw rod, the top end of the cushion block is provided with a cushion block clamping groove, and the cushion block clamping groove is clamped with the seat tube body.

[0013] As a preferred technical scheme, the bottom end of the upper clamping piece and the bottom of the upper clamping piece mounting groove are provided with an upper clamping piece groove, the upper clamping piece groove extends to the top end of the upper clamping piece, and the top end of the lower clamping piece and the bottom of the lower clamping piece mounting groove are provided with a lower clamping piece groove.

[0014] As a preferred technical scheme, the seat tube body is an arc-shaped tube.

[0015] The seat tube body and the supporting tube of the utility model are integrally formed, compared with the prior art, the processing steps are simplified, the processing cost is reduced, and the appearance is beautiful, meanwhile, the tail lamp is arranged, the tail lamp is used for emitting light, when riding, the light emitted by the tail lamp can remind the rear vehicle, so that the rear-end collision accident can be avoided in the bad condition of night or rainy day, and the tail lamp can be detachably installed at the other end of the seat tube body, when the tail lamp is damaged, the tail lamp can be replaced, so that the utility model is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further explained in connection with the drawings and examples.

[0017] Figure 1 is a first angle structure schematic view of the bicycle seat tube according to the embodiment of the present application;

[0018] Figure 2 is Figure 1 a second angle structure schematic view of the bicycle seat tube shown in the figure;

[0019] Figure 3 is Figure 1 a cross-sectional schematic view of the bicycle seat tube shown in the figure;

[0020] Figure 4 is Figure 3 a local enlarged schematic view of A shown in the figure;

[0021] Figure 5 is Figure 1 a structure schematic view of the bicycle seat tube after removing the tail light shown in the figure;

[0022] Figure 6 is Figure 1 a first angle structure schematic view of the support pipe and the seat tube body of the bicycle seat tube shown in the figure;

[0023] Figure 7 is Figure 1 a second angle structure schematic view of the support pipe and the seat tube body of the bicycle seat tube shown in the figure;

[0024] Figure 8 is Figure 1 a first angle structure schematic view of the clamping piece structure of the bicycle seat tube shown in the figure;

[0025] Figure 9 is Figure 1 a second angle structure schematic view of the clamping piece structure of the bicycle seat tube shown in the figure;

[0026] Figure 10 is Figure 1 a first angle structure schematic view of the tail light of the bicycle seat tube shown in the figure;

[0027] Figure 11 is Figure 1 a second angle structure schematic view of the tail light of the bicycle seat tube shown in the figure;

[0028] Figure 12 is Figure 1 an explosion schematic view of the tail light of the bicycle seat tube shown in the figure. DETAILED DESCRIPTION

[0029] The utility model discloses a concept, concrete structure and the technical effect produced of the utility model will be clearly and completely described below in combination with the embodiment and the drawing, to fully understand the purpose, features and effects of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment, on the basis of the embodiment of the utility model, the other embodiment obtained by the person skilled in the art without paying the creative labor, all belong to the protection scope of the utility model. In addition, all the connection / connection relations involved in the patent do not mean that the components directly connect, but can form a better connection structure by adding or reducing the connection auxiliary part according to the specific implementation situation. The various technical features in the utility model creation can be interactively combined under the premise of not mutually contradictory conflict.

[0030] Please refer to Figure 1 And Figure 2 An embodiment of the utility model provides a bicycle seat tube, support pipe 10, seat tube body 20, the clamping sheet structure 30 for installing bicycle cushion and tail light 40.

[0031] One end of seat tube body 20 is connected with one end of support pipe 10. Seat tube body 20 and support pipe 10 are integrally formed, compared with prior art, simplify the processing step, reduce the processing cost, and the appearance is beautiful. In the embodiment, support pipe 10 is a straight pipe, and seat tube body 20 is an arc-shaped pipe, which is beautiful in appearance. Understandably, seat tube body 20 can also be other shapes, which can be set according to actual conditions.

[0032] The clamping sheet structure 30 can be detachably installed on the seat tube body 20, which facilitates replacement of the clamping sheet structure 30, is convenient to use, and prolongs the service life of the bicycle seat tube.

[0033] Specifically, as shown in Figures 3 to 9 The clamping sheet structure 30 includes an upper clamping sheet 31, a lower clamping sheet 32, a screw rod 33 and a pad 34. The upper clamping sheet 31 is located above the lower clamping sheet 32, the lower clamping sheet 32 is located above the seat tube body 20, the bottom end of the lower clamping sheet 32 is provided with a lower clamping sheet clamping groove 324, the shape of the lower clamping sheet clamping groove 324 is matched with the shape of the seat tube body 20, and the lower clamping sheet clamping groove 324 is clamped with the seat tube body 20. The two sides of the bottom end of the upper clamping sheet 31 are respectively provided with two upper clamping sheet mounting grooves 312, and the two sides of the top end of the lower clamping sheet 32 are respectively provided with two lower clamping sheet mounting grooves 322. Two lower clamping sheet mounting grooves 322 correspond to two upper clamping sheet mounting grooves 312 respectively. Two upper clamping sheet mounting grooves 312 and two lower clamping sheet mounting grooves 322 are respectively used for clamping two mounting rods of the bicycle cushion.

[0034] The one end of the seat tube body 20 is provided with a concave cavity 22, the support tube 10 is a hollow tube, the concave cavity 22 communicates with the inside of the support tube 10. The top end and the bottom end of the outer wall of the seat tube body 20 are respectively provided with a first strip-shaped hole 25 and a second strip-shaped hole 26 which communicate with the concave cavity 22, the first strip-shaped hole 25 and the second strip-shaped hole 26 are both holes with semicircular ends and rectangular middle parts, one end of the first strip-shaped hole 25 and the second strip-shaped hole 26 extends towards the one end of the seat tube body 20, and the other end of the first strip-shaped hole 25 and the second strip-shaped hole 26 extends towards the other end of the seat tube body 20. The upper clamping piece 31 is provided with an upper clamping piece mounting hole 311 which penetrates the top end and the bottom end of the upper clamping piece 31, the lower clamping piece 32 is provided with a lower clamping piece mounting hole 321 which penetrates the top end and the bottom end of the lower clamping piece 32, the upper clamping piece mounting hole 311 and the lower clamping piece mounting hole 321 correspond to the first strip-shaped hole 25, the screw rod 33 is installed in the second strip-shaped hole 26, the concave cavity 22, the first strip-shaped hole 25, the lower clamping piece mounting hole 321 and the upper clamping piece mounting hole 311. The internal thread of the inner wall of the upper clamping piece mounting hole 311 and the internal thread of the inner wall of the lower clamping piece mounting hole 321 are in threaded cooperation with the external thread of the screw rod 33. The cushion block 34 is provided with a cushion block through hole which penetrates the top end and the bottom end of the cushion block 34, the cushion block 34 is sleeved on the outer periphery of the screw rod 33 through the cushion block through hole, the internal thread of the inner wall of the cushion block through hole is in threaded cooperation with the external thread of the screw rod 33. The cushion block 34 is located below the seat tube body 20 and between the seat tube body 20 and the head of the screw rod 33, the top end of the cushion block 34 is provided with a cushion block clamping groove 341, the shape of the cushion block clamping groove 341 is matched with the shape of the seat tube body 20, and the cushion block clamping groove 341 is clamped with the seat tube body 20.

[0035] In the embodiment, the bottom end of the upper clamping piece 31 and the bottom of the upper clamping piece mounting groove 312 are provided with an upper clamping piece groove 313, the upper clamping piece groove 313 extends to the top end of the upper clamping piece 31, the top end of the lower clamping piece 32 and the bottom of the lower clamping piece mounting groove 322 are provided with a lower clamping piece groove 323, the upper clamping piece groove 313 and the lower clamping piece groove 323 are arranged to reduce the weight of the upper clamping piece 31 and the lower clamping piece 32.

[0036] Through the above structure, when the bicycle seat cushion is actually installed, the head of the screw rod 33 is first screwed to separate the screw rod 33 from the upper clamping piece mounting hole 311, at this time the upper clamping piece 31 can be removed, the cushion block clamping groove 341 is separated from the seat tube body 20, then the two installation rods of the bicycle seat cushion are respectively clamped with the two lower clamping piece mounting grooves 322 of the lower clamping piece 32, then the upper clamping piece 31 is moved above the lower clamping piece 32 and the two upper clamping piece mounting grooves 312 of the upper clamping piece 31 are respectively clamped with the two installation rods of the bicycle seat cushion, then the head of the screw rod 33 is screwed to reinstall the screw rod 33 in the upper clamping piece mounting hole 311, and the cushion block clamping groove 341 is clamped with the seat tube body 20.

[0037] By the above structure, the position of the clamping piece structure 30 can be adjusted, so that the height of the bicycle saddle can be adjusted, and the use is convenient. When actually adjusting the height of the bicycle saddle, if the clamping piece structure 30 corresponds to the center of the seat tube body 20 in the initial position, when it is needed to adjust the bicycle saddle to be higher, the head of the screw rod 33 is first screwed to separate the pad block clamping groove 341 from the seat tube body 20, at this time the screw rod 33 is not completely separated from the upper clamping piece mounting hole 311 and the lower clamping piece mounting hole 321, then the upper clamping piece 31, the lower clamping piece 32 and the bicycle saddle are moved along the seat tube body 20 to the direction away from the support tube 10, after being moved to the appropriate position, the lower clamping piece clamping groove 324 is first clamped with the seat tube body 20, then the head of the screw rod 33 is screwed until the pad block clamping groove 341 is clamped with the seat tube body 20. When it is needed to adjust the bicycle saddle to be lower, the head of the screw rod 33 is first screwed to separate the pad block clamping groove 341 from the seat tube body 20, at this time the screw rod 33 is not completely separated from the upper clamping piece mounting hole 311 and the lower clamping piece mounting hole 321, then the upper clamping piece 31, the lower clamping piece 32 and the bicycle saddle are moved along the seat tube body 20 to the direction close to the support tube 10, after being moved to the appropriate position, the lower clamping piece clamping groove 324 is first clamped with the seat tube body 20, then the head of the screw rod 33 is screwed until the pad block clamping groove 341 is clamped with the seat tube body 20.

[0038] The tail lamp 40 is detachably mounted at the other end of the seat tube body 20, the tail lamp 40 is used for emitting light, the light emitted by the tail lamp 40 can remind the rear vehicle when riding, and the rear-end collision accident can be avoided in the bad situation of night or rainy day, and the tail lamp 40 is detachably mounted at the other end of the seat tube body 20, when the tail lamp 40 is damaged, the tail lamp 40 is convenient to replace, and the use is convenient.

[0039] Specifically, as shown in Figures 3 to 7 , Figures 10 to 12 , the other end of the seat tube body 20 is provided with a plug-in groove 21, and the recess 22 communicates with the plug-in groove 21. The tail lamp 40 is movably plugged into the plug-in groove 21, and part of the tail lamp 40 is located outside the plug-in groove 21 and abuts against the other end of the seat tube body 20. The bottom of the plug-in groove 21 is provided with an iron sheet 23, and the tail lamp 40 is provided with a magnet 50, which abuts against and is attracted to the iron sheet 23. This structure facilitates the disassembly and assembly of the tail lamp 40.

[0040] In this embodiment, the tail lamp 40 includes a lamp shell 41, a transparent lamp shade 42, a PCBA board 43, a battery 44, a lamp plate 45 and a ring-shaped LED lamp 46.

[0041] The lamp shell 41 comprises a hollow lamp shell body 411 and a lamp shell closing part 412 formed at one end of the lamp shell body 411. The transparent lamp shade 42 comprises a hollow lamp shade body 421 and a lamp shade closing part 422 formed at one end of the lamp shade body 421. The lamp shell body 411 is movably inserted into the lamp shade body 421, and the interior of the lamp shell body 411 and the interior of the lamp shade body 421 are in communication to form a mounting cavity. The end of the lamp shell closing part 412 close to the lamp shell body 411 abuts against the other end of the lamp shade body 421. The lamp shade body 421 and the lamp shell closing part 412 are movably inserted into the insertion groove 21, and the lamp shade closing part 422 is located outside the insertion groove 21 and the end of the lamp shade closing part 422 close to the lamp shade body 421 abuts against the other end of the seat pipe body 20. During the process of inserting the lamp shade body 421 and the lamp shell closing part 412 into the insertion groove 21, the lamp shade closing part 422 abuts against the other end of the seat pipe body 20, so that the lamp shade body 421 and the lamp shell closing part 412 can be limited. The center of the end of the lamp shell closing part 412 away from the lamp shell body 411 is provided with an annular boss 4121, and the annular boss 4121 is provided with the magnet 50, and the magnet 50 partially protrudes from the end of the annular boss 4121 away from the lamp shell closing part 412. The battery 44 and the lamp plate 45 are sequentially arranged in the mounting cavity in a direction away from the magnet 50, and the PCBA board 43 is located between the battery 44 and the lamp plate 45 and is fixed to the side of the lamp plate 45 close to the battery 44. The annular LED lamp 46 is arranged on the side of the lamp plate 45 away from the battery 44 and close to the lamp shade closing part 422, and the battery 44 and the annular LED lamp 46 are electrically connected with the PCBA board 43. The battery 44 is used to supply power to the PCBA board 43, the PCBA board 43 is used to control the working of the annular LED lamp 46, and the annular LED lamp 46 is used to emit light, and the emitted light can be transmitted through the lamp shade closing part 422.

[0042] In the embodiment, the outer wall of the lamp shell body 411 is provided with a lamp shell buckle 4112, and the outer wall of the lamp shade body 421 is provided with a lamp shell clamping position 4213 corresponding to the lamp shell buckle 4112. The lamp shell buckle 4112 and the lamp shell clamping position 4213 are clamped together, so that the lamp shell body 411 and the lamp shade body 421 can be fixed together. The lamp shell buckle 4112 is two, and the two lamp shell buckles 4112 are symmetrically arranged about the axis of the tail lamp 40. The number of the lamp shell clamping position 4213 corresponds to the number of the lamp shell buckle 4112, and the number of the lamp shell clamping position 4213 is also two. It can be understood that the number of the lamp shell buckle 4112 and the lamp shell clamping position 4213 can be set according to actual conditions.

[0043] The outer wall of the lamp shell body 411 is provided with a lamp shell through groove 4111, and the length direction of the lamp shell through groove 4111 is the same as the length direction of the lamp shell body 411. The inner wall of the end of the lamp shell through groove 4111 away from the lamp shell closing part 412 is provided with the lamp shell buckle 4112.

[0044] In this embodiment, the outer wall of the lamp cover body 421 is formed with two protrusions 4211, which are symmetrically arranged about the axis of the tail lamp 40, and one end of each protrusion 4211 is connected to the end of the lamp cover closure 422 close to the lamp cover body 421. The outer wall of the seat pipe body 20 is provided with two grooves 24 corresponding to the two protrusions 4211, respectively, each groove 24 extending to the other end of the seat pipe body 20 and communicating with the insertion slot 21, and the two protrusions 4211 are matched with the two grooves 24, respectively. The side of the protrusion 4211 away from the lamp cover body 421 is provided with a recess, and the bottom of the recess is provided with a plurality of protrusions 42111, which are arranged along the axial direction of the tail lamp 40. The two protrusions 4211 and the two grooves 24 are arranged to facilitate the placement of fingers, thereby facilitating the insertion of the tail lamp 40 into the insertion slot 21 or the removal of the tail lamp 40 from the insertion slot 21. The plurality of protrusions 42111 can increase the friction between the fingers and the protrusions 4211, thereby preventing slipping. The number of protrusions 42111 can be set according to actual conditions. In actual installation of the tail lamp 40, two fingers can be placed on the two protrusions 4211, respectively, and then the two protrusions 4211 are aligned with the two grooves 24, respectively, and the tail lamp 40 is inserted into the insertion slot 21 until the magnet 50 abuts against the iron sheet 23 and the lamp cover closure 422 abuts against the other end of the seat pipe body 20. At this time, the magnet 50 is attracted to the iron sheet 23, and the two protrusions 4211 are matched with the two grooves 24, respectively. Thus, the tail lamp 40 is installed. When it is necessary to disassemble the tail lamp 40, two fingers are placed on the two protrusions 4211, respectively, and then the tail lamp 40 is removed from the insertion slot 41.

[0045] Further, the battery 44 is a rechargeable battery, and the tail lamp 40 further comprises a charging interface 47, which is arranged on the side of the PCBA board 43 close to the battery 44 and electrically connected to the PCBA board 43. The outer wall of the lamp shell body 411 is provided with an avoidance position 4113 corresponding to the charging interface 47, which communicates with the installation cavity. The outer wall of the lamp cover body 421 is provided with an installation position 4212 communicating with the avoidance position 4113, and the charging interface 47 partially penetrates the avoidance position 4113 and is arranged in the installation position 4212. The charging interface 47 is used to be electrically connected to an external power source through a charging wire, so that the external power source can charge the battery 44 through the charging wire and the charging interface 47. When it is necessary to charge the battery 44, the tail lamp 40 can be first removed from the seat pipe body 20, and then taken indoors for charging. After charging is completed, the tail lamp 40 can be reinstalled on the seat pipe body 20. The type of the charging interface 47 can be set according to actual conditions.

[0046] Further, the tail lamp 40 further comprises a button 48 and a button cap. The button cap is made of elastic material, and comprises a hollow cap body 491 and a button post 492. The end of the lamp cover closing part 422 away from the lamp cover body 421 is provided with a recessed groove 4221, and the recessed groove 4221 is in communication with the mounting cavity. The cap body 491 is located at the inner side of the annular LED lamp 46, one end of the cap body 491 abuts against the side of the lamp plate 45 away from the battery 44, and the other end of the cap body 491 extends out of the recessed groove 4221 and is formed with a pressing part 4911. The button post 492 is located in the interior of the cap body 491, and one end of the button post 492 is connected to the end of the pressing part 4911 close to the cap body 491, and the end of the pressing part 4911 away from the cap body 491 is provided with an inner recessed pressing position 49111, and the pressing position 49111 is convenient for placing fingers. The button 48 is arranged at the side of the PCBA plate 43 away from the battery 44, is located in the avoiding position 451 of the lamp plate 45 and the cap body 491, and abuts against the other end of the button post 492. In actual application, the fingers are placed in the pressing position 49111 and press the pressing part 4911, so that the button 48 can be pressed through the button post 492, and at this time, the annular LED lamp 46 can be started to work through the PCBA plate 43, and light can be emitted through the annular LED lamp 46. When the pressing part 4911 is pressed again, the button 48 can be pressed again through the button post 492, and at this time, the annular LED lamp 46 can be stopped to work through the PCBA plate 43, and the annular LED lamp 46 stops emitting light.

[0047] The outer wall of one end of the cap body 491 is formed with a first annular extension part 4912, the first annular extension part 4912 is located at the inner side of the annular LED lamp 46, the end of the lamp cover closing part 422 close to the lamp cover body 421 is formed with a second annular extension part 4222, the second annular extension part 4222 is sleeved on the outer periphery of the cap body 491, and the first annular extension part 4912 is clamped between the lamp plate 45 and the second annular extension part 4222. The first annular extension part 4912 and the second annular extension part 4222 can prevent the button cap from falling out of the mounting cavity.

[0048] A sealing ring is arranged between the inner wall of the second annular extension part 4222 and the outer wall of the cap body 491, the sealing ring is sleeved on the outer periphery of the cap body 491, and the sealing ring plays a sealing role, so that water and the like can be prevented from entering the mounting cavity.

[0049] The above is a specific description of the preferred embodiment of the utility model, but the utility model is not limited to the embodiment, and various equivalent modifications or replacements can be made by those skilled in the art without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A bicycle seat tube comprising a support tube, a seat tube body and a clip structure for mounting a bicycle seat cushion, one end of the seat tube body being connected to one end of the support tube, the clip structure being detachably mounted on the seat tube body, characterized in that, The seat pipe body and the support pipe are integrally formed, and the tail lamp is detachably installed at the other end of the seat pipe body; the other end of the seat pipe body is provided with a plug-in groove, the tail lamp is movably plugged in the plug-in groove, the tail lamp is partially located outside the plug-in groove and abuts against the other end of the seat pipe body, the bottom of the plug-in groove is provided with an iron sheet, the tail lamp is provided with a magnet, and the magnet abuts against and is attracted to the iron sheet.

2. Bicycle seat tube according to claim 1, characterized in that The tail lamp comprises a lamp shell, a transparent lamp shade, a PCBA board, a battery, a lamp plate and a ring-shaped LED lamp, the lamp shell comprises a hollow lamp shell body and a lamp shell closed part formed at one end of the lamp shell body, the transparent lamp shade comprises a hollow lamp shade body and a lamp shade closed part formed at one end of the lamp shade body, the lamp shell body is movably plugged in the lamp shade body, the inside of the lamp shell body and the inside of the lamp shade body are communicated to form an installation cavity, one end of the lamp shell closed part close to the lamp shell body abuts against the other end of the lamp shade body, the lamp shade body and the lamp shell closed part are movably plugged in the plug-in groove, the lamp shade closed part is located outside the plug-in groove, and one end of the lamp shade closed part close to the lamp shade body abuts against the other end of the seat pipe body, one end of the lamp shell closed part away from the lamp shell body is formed with a ring-shaped boss, the magnet is arranged in the ring-shaped boss, and the magnet partially protrudes from one end of the ring-shaped boss away from the lamp shell closed part, the battery and the lamp plate are sequentially arranged in the installation cavity in a direction away from the magnet, the PCBA board is located between the battery and the lamp plate and is fixed on the side of the lamp plate close to the battery, the ring-shaped LED lamp is arranged on the side of the lamp plate away from the battery and close to the lamp shade closed part, and the battery and the ring-shaped LED lamp are electrically connected with the PCBA board.

3. Bicycle seat tube according to claim 2, characterized in that The battery is a rechargeable battery, the tail lamp further comprises a charging interface, the charging interface is arranged on the side of the PCBA board close to the battery and is electrically connected with the PCBA board, an avoiding position corresponding to the charging interface is arranged on the outer wall of the lamp shell body, the avoiding position is communicated with the installation cavity, an installation position communicated with the avoiding position is arranged on the outer wall of the lamp shade body, the charging interface partially penetrates through the avoiding position and is arranged in the installation position, and the charging interface is electrically connected with the PCBA board.

4. The bicycle seat tube of claim 2, wherein, The tail lamp further comprises a key and a key cap, the key cap comprises a hollow cap body and a key column, one end of the lamp shade closed part away from the lamp shade body is provided with a recessed groove, the recessed groove is communicated with the installation cavity, the cap body is located on the inner side of the ring-shaped LED lamp, one end of the cap body abuts against the side of the lamp plate away from the battery, the other end of the cap body extends out of the recessed groove and is formed with a pressing part, the key column is located in the cap body and one end of the key column is connected with the end of the pressing part close to the cap body, the other end of the pressing part away from the cap body is provided with an inner recessed pressing position, the key is arranged on the side of the PCBA board away from the battery and is electrically connected with the PCBA board, the key is located in the avoiding position of the lamp plate and the cap body and abuts against the other end of the key column.

5. Bicycle seat tube according to claim 4, characterized in that The outer wall of one end of the cap body is formed with a ring-shaped first protruding part, which is located at the inner side of the ring-shaped LED lamp, and the end of the lamp cover close to the lamp cover body is formed with a ring-shaped second protruding part, which is sleeved on the outer periphery of the cap body, and the first protruding part is clamped between the lamp panel and the second protruding part.

6. The bicycle seat tube of claim 2, wherein, The outer wall of the lamp cover body is formed with two protruding parts which are symmetrically arranged about the axis of the tail lamp, one end of the protruding part is connected with the end of the lamp cover close to the lamp cover body, the outer wall of the seat pipe body is provided with two grooves corresponding to the two protruding parts respectively, the two grooves respectively extend to the other end of the seat pipe body and respectively communicate with the plug-in slot, the two protruding parts are respectively matched with the two grooves, the side of the protruding part away from the lamp cover body is provided with a recess, the bottom of the recess is provided with a plurality of convex edges which are arranged at intervals along the axial direction of the tail lamp.

7. The bicycle seat tube of claim 2, wherein, The outer wall of the lamp cover body is provided with a lamp cover clamping part corresponding to the lamp cover clamping part, and the lamp cover clamping part and the lamp cover clamping part are clamped together.

8. The bicycle seat tube of claim 1, wherein, The clamping piece structure includes an upper clamping piece, a lower clamping piece, a screw rod and a pad, the upper clamping piece is located above the lower clamping piece, the lower clamping piece is located above the seat pipe body, the bottom end of the lower clamping piece is provided with a lower clamping piece clamping groove, the lower clamping piece clamping groove is clamped with the seat pipe body, the bottom end of the upper clamping piece is provided with two upper clamping piece mounting grooves on both sides respectively, the top end of the lower clamping piece is provided with two lower clamping piece mounting grooves on both sides respectively, two lower clamping piece mounting grooves correspond to two upper clamping piece mounting grooves respectively. One end of the seat pipe body is provided with a recess, the recess communicates with the plug-in slot, the top end and the bottom end of the outer wall of the seat pipe body are respectively provided with a first strip hole and a second strip hole which communicate with the recess, one end of the first strip hole and the second strip hole extends towards the end of the seat pipe body, the other end of the first strip hole and the second strip hole extends towards the other end of the seat pipe body, the upper clamping piece is provided with an upper clamping piece mounting hole penetrating through the top end and the bottom end, the lower clamping piece is provided with a lower clamping piece mounting hole penetrating through the top end and the bottom end, the upper clamping piece mounting hole and the lower clamping piece mounting hole correspond to the first strip hole, the screw rod is installed in the second strip hole, the recess, the first strip hole, the lower clamping piece mounting hole and the upper clamping piece mounting hole, the internal thread of the inner wall of the upper clamping piece mounting hole and the internal thread of the inner wall of the lower clamping piece mounting hole are threadedly matched with the external thread of the screw rod, the pad is provided with a pad through hole penetrating through the top end and the bottom end, the pad is sleeved on the outer periphery of the screw rod through the pad through hole, the internal thread of the inner wall of the pad through hole is threadedly matched with the external thread of the screw rod, the pad is located below the seat pipe body and between the seat pipe body and the head of the screw rod, the top end of the pad is provided with a pad clamping groove, and the pad clamping groove is clamped with the seat pipe body.

9. Bicycle seat tube according to claim 8, characterized in that The bottom end of the upper clamping piece and the bottom of the upper clamping piece mounting groove are provided with an upper clamping piece recess, the upper clamping piece recess extends to the top end of the upper clamping piece, the top end of the lower clamping piece and the bottom of the lower clamping piece mounting groove are provided with a lower clamping piece recess.

10. The bicycle seat tube of claim 1, wherein, The seat tube body is an arc-shaped tube. The seat tube body is an arc-shaped tube.

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