High-strength backseat support of bicycle

Abstract

The utility model discloses a high-strength backseat support of a bicycle, which relates to the technical field of bicycles and comprises a U-shaped frame, a reinforcing unit and a buffering unit. A rear seat body is arranged above the U-shaped frame, transverse plates are symmetrically arranged at the lower end of the rear seat body, grooves are evenly formed in the transverse plates, reinforcing units are evenly arranged at the lower ends of the transverse plates, buffer units are arranged between the reinforcing units, a storage groove is formed in the rear seat body, side tail rods are slidably arranged in the storage groove, and rear tail rods are evenly arranged between the side tail rods. An upper screw rod is arranged at the lower end of the side tail rod, and a lower screw rod is arranged below the upper screw rod; through the arrangement of the reinforcing unit, when the weight of goods or people on the rear seat is large, the generated pressure force can drive the rotating plate to rotate, and then the first telescopic spring deforms, so that the effect of automatically balancing the pressure is achieved, the pressure transmitted to the U-shaped frame is reduced, and the situation that the support deforms due to the fact that the support is prone to being stressed too large can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a high-strength rear seat bracket for a bicycle. Background Art

[0002] A bicycle, also known as a bike or a bicycle, is usually a small two-wheeled land vehicle. After riding on the bicycle, people use pedals as power. It is a green and environmentally friendly means of transportation and also a lightweight means of transportation. It can be driven by one person or carry goods or people on the back seat. The bicycle seat includes a seat for the rider and a back seat for placing goods or people.

[0003] The rear seat of an existing bicycle is supported by only two brackets. When the weight of the goods or people on the rear seat is large, the brackets are easily deformed by force. In addition, the rear seats of existing bicycles are of fixed length. When a relatively long object needs to be carried, it is easy to fall off. Although there are now retractable rear seats, generally the auxiliary rear seat is located inside the main rear seat, with several different retractable positions, which are fixed by bolts. This type of retractable rear seat cannot achieve self-locking, and is inconvenient to adjust, requiring the help of tools. For this reason, we propose a high-strength rear seat bracket for a bicycle. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a high-strength rear seat bracket for a bicycle, which can not only prevent the bracket from being easily deformed by force and has good stability, but also facilitates the adjustment of the length of the rear seat, has a simple structure, and is easy to assemble and disassemble, and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-strength rear seat bracket for a bicycle, comprising a U-shaped frame, a reinforcement unit and a buffer unit;

[0007] A rear seat body is arranged above the U-shaped frame, and the reinforcing unit and the buffer unit are both located between the U-shaped frame and the rear seat body; a storage groove is provided inside the rear seat body, and a side tail rod is slidably arranged in the storage groove, and a rear tail rod is evenly arranged between the side tail rods, and an upper screw rod is arranged at the lower end of the side tail rod, and a lower screw rod is arranged below the upper screw rod, and a fixing plate at the end of the screw rod is detachably connected to the U-shaped frame;

[0008] The strengthening unit includes a connecting plate, a limiting shaft and a connecting block. A rotating plate is symmetrically arranged between the upper and lower connecting plates. The limiting shaft is fixedly installed on the connecting plate. The rotating plate is rotatably connected with the limiting shaft. A connecting block is arranged between the two rotating plates. An adjusting rod is fixedly installed between the connecting blocks. A telescopic spring is sleeved on the adjusting rod.

[0009] The buffer unit comprises a damping rod, and a buffer spring is sleeved on the damping rod.

[0010] By setting up the reinforcement unit, when the weight of the goods or people on the back seat is heavy, the pressure force generated will drive the rotating plate to rotate, and then cause the telescopic spring to deform, thereby playing a role of automatically balancing the pressure, reducing the pressure transmitted to the U-shaped frame, and effectively preventing the bracket from being easily deformed due to excessive force.

[0011] Furthermore, a transverse plate is symmetrically provided at the lower end of the rear seat body, grooves are evenly opened on the transverse plate, reinforcing units are evenly provided at the lower end of the transverse plate, and the buffer unit is located between the reinforcing units.

[0012] Furthermore, the lower end of the damping rod is fixedly connected to the upper end of the U-shaped frame, and the upper end of the damping rod is fixedly connected to the lower end of the cross plate.

[0013] By setting the buffer unit, the damping rod and the buffer spring can reduce the impact force generated when pressure is applied to the rear seat, thereby preventing the impact force from causing damage to the seat frame, bracket and other components.

[0014] Furthermore, a protrusion is fixedly installed at the lower end of the rear seat body, and clamping blocks are evenly arranged at both ends of the protrusion. A groove is symmetrically opened at the upper end of the cross plate, and clamping slots are symmetrically opened at both ends of the groove. The protrusion is clamped with the groove, and the clamping block is clamped with the clamping slot.

[0015] The protrusion and the groove are used in conjunction with each other, and the clamping block and the clamping slot are used in conjunction with each other to ensure the stability of the connection between the rear seat body and the bracket.

[0016] Furthermore, a rectangular groove is symmetrically provided inside the protrusion, a telescopic rod is fixedly installed inside the rectangular groove, the telescopic rod is fixedly connected to the clamping block, and a second telescopic spring is sleeved on the telescopic rod.

[0017] The card block is subjected to extrusion force in the process of moving with the protrusion, thereby causing the telescopic rod and the second telescopic spring to contract. After the pressure disappears, the second telescopic spring extends outward with the telescopic rod, so that the card block enters the card slot.

[0018] Furthermore, the rear seat body is provided with a storage groove inside which a side tail rod is slidably provided, a slide groove 2 is provided on the inner wall at the lower end of the storage groove, the slide groove 2 is slidably connected to the slider, the slider is fixedly connected to the lower end of the side tail rod, slide grooves 1 are provided on both sides of the inner wall of the storage groove, the slide groove 1 is slidably connected to the slide plate, the slide plate is fixedly connected to the side tail rod, the rear tail rods are evenly installed between the side tail rods, and the lower ends of the side tail rods are symmetrically installed with mounting plates.

[0019] The first slide groove is slidably connected with the slide plate to facilitate the movement of the side tail rod. The second slide groove is used in conjunction with the slide block to limit the side tail rod.

[0020] Furthermore, an upper screw is rotatably provided between the mounting plates, the lower end of the upper screw is threadedly connected to the adjusting sleeve, the lower end of the adjusting sleeve is threadedly connected to the upper end of the lower screw, the lower end of the lower screw is fixedly connected to the fixing plate, a strong magnetic disk is fixedly installed on the fixing plate, a strong magnetic disk is also installed on the U-shaped frame, and the strong magnetic disks are magnetically connected.

[0021] When the length of the rear seat of the bicycle needs to be adjusted, just separate the lower screw rod from between the strong magnetic disks and twist the adjustment sleeve by hand, the upper screw rod and the lower screw rod will be extended and retracted, thereby driving the two side tail rods of the rear seat body to extend and retract in the storage slot, so as to adjust the length of the rear seat. The adjustment is convenient and labor-saving, and no special tools are required. At the same time, the threaded connection can achieve self-locking. Not only is the structure simple, but also it is easy to disassemble and assemble.

[0022] Furthermore, there are twelve connecting plates, six of which are fixedly mounted on the lower end of the horizontal plate, and the other six connecting plates are fixedly mounted on the upper end of the U-shaped frame. This arrangement allows the reinforcing unit to fully disperse the pressure transmitted by the rear seat body to the U-shaped frame, thereby reducing the pressure on the U-shaped frame.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] This scheme is a high-strength bicycle rear seat bracket, which has the following advantages:

[0025] 1. By strengthening the setting of the unit, when the back seat needs to carry goods or people, the pressure generated will drive the rotating plate to rotate, and then cause the telescopic spring to deform, thereby automatically balancing the pressure, reducing the pressure transmitted to the U-shaped frame, and effectively preventing the bracket from being deformed due to excessive force.

[0026] 2. By setting the buffer unit, the damping rod and the buffer spring can reduce the impact force generated when pressure is applied to the rear seat, thereby preventing the impact force from causing damage to the seat frame, bracket and other components.

[0027] 3. When the length of the rear seat of the bicycle needs to be adjusted, just separate the lower screw from between the strong magnetic disks and twist the adjustment sleeve by hand, the upper screw and the lower screw will be extended and retracted, and the positions of the two side tail rods of the rear seat body in the storage slot can be adjusted, so as to adjust the length of the rear seat. The adjustment is convenient and labor-saving. At the same time, the threaded connection can achieve self-locking. It is not only simple in structure, but also easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a schematic structural diagram of a high-strength rear seat bracket for a bicycle.

[0029] Figure 2 The utility model is a schematic structural side view of a high-strength rear seat bracket for a bicycle.

[0030] Figure 3 The utility model is a schematic diagram of the rear seat body structure of a high-strength rear seat bracket for a bicycle.

[0031] Figure 4 The utility model is a schematic top view of a horizontal plate structure of a high-strength rear seat bracket for a bicycle.

[0032] Figure 5 The utility model is a schematic internal cross-sectional view of a convex block structure of a high-strength rear seat bracket of a bicycle.

[0033] The markings in the figure are:

[0034] 1U-shaped frame, 2 rear seat body, 3 reinforcement unit, 301 connecting plate, 302 limiting shaft, 303 connecting block, 304 adjusting rod, 305 rotating plate, 4 buffer unit, 401 damping rod, 402 buffer spring, 5 cross plate, 6 side tail rod, 7 slide plate, 8 rear tail rod, 9 protrusion, 10 card block, 11 groove, 12 rectangular groove, 13 telescopic rod, 14 mounting plate, 15 upper screw, 16 adjusting sleeve, 17 lower screw, 18 fixing plate, 19 strong magnetic disk. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-5 , this embodiment provides a technical solution:

[0037] A high-strength rear seat bracket for a bicycle, comprising a U-shaped frame 1, a reinforcing unit 3 and a buffer unit 4;

[0038] A rear seat body 2 is provided above the U-shaped frame 1, and a transverse plate 5 is symmetrically provided at the lower end of the rear seat body 2, and grooves 11 are evenly provided on the transverse plate 5. Reinforcement units 3 are evenly provided at the lower end of the transverse plate 5, and buffer units 4 are provided between the reinforcement units 3. A storage groove is provided inside the rear seat body 2, and side tail rods 6 are slidably provided in the storage groove. Rear tail rods 8 are evenly provided between the side tail rods 6, and upper screws 15 are provided at the lower ends of the side tail rods 6. A lower screw 17 is provided below the upper screw 15, and a fixing plate 18 at the end of the lower screw 17 is detachably connected to the U-shaped frame 1. When the rear seat is extended, the fixing plate 18 is connected to the U-shaped frame 1, and the fixing plate 18 supports the side tail rods 6 and the rear tail rod 8 through the lower screw 17 and the upper screw 15.

[0039] like Figure 2As shown, the reinforcing unit 3 includes a connecting plate 301, a limiting shaft 302 and a connecting block 303. There are twelve connecting plates 301, six connecting plates 301 are fixedly installed at the lower end of the cross plate 5, and the other six connecting plates 301 are fixedly installed at the upper end of the U-shaped frame 1. A rotating plate 305 is symmetrically arranged between the upper and lower connecting plates 301, and the limiting shaft 302 is fixedly installed on the connecting plate 301. The rotating plate 305 is rotatably connected to the limiting shaft 302. A connecting block 303 is arranged between the two rotating plates 305, and an adjusting rod 304 is fixedly installed between the connecting blocks 303. The adjusting rod 304 is a telescopic rod, which can be specifically selected as a pneumatic telescopic rod or a hydraulic telescopic rod. The length of the adjusting rod can be changed according to the force, and the telescopic rod is an existing mature product; a telescopic spring 1 is sleeved on the adjusting rod 304.

[0040] By setting the reinforcing unit 3, when the rear seat carries goods or people, the pressure generated will drive the rotating plate 305 to rotate, thereby compressing the length of the adjusting rod 304. Once the telescopic spring is compressed, it will automatically balance the pressure, thereby reducing the pressure transmitted to the U-shaped frame 1, which can effectively prevent the bracket from being deformed due to excessive force.

[0041] The buffer unit 4 includes a damping rod 401 and a buffer spring 402 . The lower end of the damping rod 401 is fixedly connected to the upper end of the U-shaped frame 1 , and the upper end of the damping rod 401 is fixedly connected to the lower end of the cross plate 5 . The damping rod 401 is sleeved with a buffer spring 402 .

[0042] By providing the buffer unit 4, the damping rod 401 and the buffer spring 402 can reduce the impact force generated when pressure is applied to the rear seat, thereby preventing the impact force from causing damage to the seat frame, bracket and other components.

[0043] like Figure 1 , 3 As shown in , 4 and 5, a protrusion 9 is fixedly mounted on the lower end of the rear seat body 2, and blocks 10 are evenly arranged at both ends of the protrusion 9. A groove 11 is symmetrically provided at the upper end of the cross plate 5, and slots are symmetrically provided at both ends of the groove 11. The protrusion 9 is engaged with the groove 11, and the block 10 is engaged with the slot.

[0044] The protrusion 9 is used in conjunction with the groove 11, and the clamping block 10 is used in conjunction with the clamping slot, so as to ensure the stability of the connection between the rear seat body 2 and the bracket.

[0045] A rectangular groove 12 is symmetrically formed inside the protrusion 9 , a telescopic rod 13 is fixedly installed inside the rectangular groove 12 , the telescopic rod 13 is fixedly connected to the clamping block 10 , and a second telescopic spring is sleeved on the telescopic rod 13 .

[0046] The block 10 is subjected to extrusion force in the process of moving with the protrusion 9, thereby contracting the telescopic rod 13 and the second telescopic spring. After the pressure disappears, the second telescopic spring extends outward with the telescopic rod 13, so that the block 10 enters the card slot.

[0047] like Figure 1 , 2 As shown in 3, the interior of the rear seat body 2 is provided with a storage groove in which a side tail rod 6 is slidably provided, a slide groove 2 is provided on the inner wall of the lower end of the storage groove, the slide groove 2 is slidably connected to the slider, the slider is fixedly connected to the lower end of the side tail rod 6, slide grooves 1 are provided on both sides of the inner wall of the storage groove, the slide groove 1 is slidably connected to the slide plate 7, the slide plate 7 is fixedly connected to the side tail rod 6, rear tail rods 8 are evenly installed between the side tail rods 6, and mounting plates 14 are symmetrically installed at the lower ends of the side tail rods 6.

[0048] The first slide groove is slidably connected to the slide plate 7 to facilitate the movement of the side tail rod 6. The second slide groove cooperates with the slide block to limit the side tail rod 6.

[0049] like Figure 2 As shown, an upper screw rod 15 is rotatably provided between the mounting plates 14, the lower end of the upper screw rod 15 is threadedly connected to the adjusting sleeve 16, the lower end of the adjusting sleeve 16 is threadedly connected to the upper end of the lower screw rod 17, and the lower end of the lower screw rod 17 is fixedly connected to the fixing plate 18; the upper screw rod 15 is threadedly connected to the adjusting sleeve 16, and the lower screw rod 17 is threadedly connected to the adjusting sleeve 16.

[0050] A strong magnetic disk 19 is fixedly mounted on the fixing plate 18, and a strong magnetic disk 19 is also mounted on the U-shaped frame 1. The strong magnetic disks 19 are magnetically connected; specifically, the strong magnetic disks 19 on the fixing plate 18 and the strong magnetic disks 19 on the U-shaped frame 1 are attracted to each other by magnetism.

[0051] When the rear seat length of the bicycle needs to be adjusted, just separate the lower screw rod 17 from the strong magnetic disks 19 and twist the adjusting sleeve 16 by hand, the upper screw rod 15 and the lower screw rod 17 will be extended and retracted, and the positions of the two side tail rods 6 of the rear seat body 2 in the storage groove can be adjusted, so that the rear seat length can be adjusted. The adjustment is convenient and labor-saving, and no special tools are required. At the same time, the threaded connection can achieve self-locking, which is not only simple in structure, but also easy to disassemble and assemble.

[0052] The working principle of a high-strength bicycle rear seat bracket provided by the utility model is as follows:

[0053] When the rear seat needs to carry goods or people, the rear seat body 2 is subjected to downward pressure, and the pressure is transmitted to the reinforcing unit 3 and the buffer unit 4 .

[0054] The pressure will drive the rotating plate 305 of the reinforcing unit 3 to rotate, and the adjusting rod 304 will be compressed and shortened, thereby compressing the telescopic spring outside the adjusting rod 304, thereby playing a role of automatically balancing the pressure, reducing the pressure transmitted to the U-shaped frame 1, and effectively preventing the bracket from being easily deformed due to excessive force.

[0055] The damping rod 401 and the buffer spring 402 can achieve force buffering, which can reduce the impact force generated when pressure is applied to the rear seat, and can prevent the impact force from causing damage to the seat frame, bracket and other components.

[0056] When the rear seat length of the bicycle needs to be adjusted, the fixing plate 18 is separated from the two strong magnetic disks 19 on the U-shaped frame 1 by a tool, and the adjusting sleeve 16 is screwed by hand, and the upper screw rod 15 and the lower screw rod 17 are extended and retracted, and the positions of the two side tail rods 6 of the rear seat body 2 in the storage slot can be adjusted to extend or retract a specific length, thereby realizing the adjustment of the rear seat length. The adjustment is convenient and labor-saving, and the threaded connection can realize self-locking, which is not only simple in structure, but also convenient for disassembly and assembly.

[0057] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-strength rear seat bracket for a bicycle, characterized in that: It comprises a U-shaped frame (1), a reinforcing unit (3) and a buffer unit (4); A rear seat body (2) is arranged above the U-shaped frame (1), and the reinforcing unit (3) and the buffer unit (4) are both located between the U-shaped frame (1) and the rear seat body (2); a storage groove is provided inside the rear seat body (2), and side tail rods (6) are slidably arranged in the storage groove, and rear tail rods (8) are evenly arranged between the side tail rods (6); an upper screw rod (15) is arranged at the lower end of the side tail rod (6), and a lower screw rod (17) is arranged below the upper screw rod (15); a fixing plate (18) at the end of the lower screw rod (17) is detachably connected to the U-shaped frame (1); The reinforcing unit (3) comprises a connecting plate (301), a limiting shaft (302) and a connecting block (303); a rotating plate (305) is symmetrically arranged between the upper and lower connecting plates (301); the limiting shaft (302) is fixedly mounted on the connecting plate (301); the rotating plate (305) is rotatably connected to the limiting shaft (302); a connecting block (303) is arranged between the two rotating plates (305); an adjusting rod (304) is fixedly mounted between the connecting blocks (303); and a telescopic spring (1) is sleeved on the adjusting rod (304); The buffer unit (4) comprises a damping rod (401), and a buffer spring (402) is sleeved on the damping rod (401).

2. The high-strength bicycle rear seat bracket according to claim 1, characterized in that: A transverse plate (5) is symmetrically provided at the lower end of the rear seat body (2), grooves (11) are evenly provided on the transverse plate (5), reinforcing units (3) are evenly provided at the lower end of the transverse plate (5), and the buffer unit (4) is located between the reinforcing units (3).

3. The high-strength bicycle rear seat bracket according to claim 2, characterized in that: The lower end of the damping rod (401) is fixedly connected to the upper end of the U-shaped frame (1), and the upper end of the damping rod (401) is fixedly connected to the lower end of the horizontal plate (5).

4. The high-strength bicycle rear seat bracket according to claim 3, characterized in that: A protrusion (9) is fixedly mounted on the lower end of the rear seat body (2), and clamping blocks (10) are evenly arranged at both ends of the protrusion (9). A groove (11) is symmetrically provided at the upper end of the transverse plate (5), and clamping grooves are symmetrically provided at both ends of the groove (11). The protrusion (9) is clamped with the groove (11), and the clamping block (10) is clamped with the clamping groove.

5. The high-strength bicycle rear seat bracket according to claim 4, characterized in that: A rectangular groove (12) is symmetrically provided inside the protrusion (9), a telescopic rod (13) is fixedly installed inside the rectangular groove (12), the telescopic rod (13) is fixedly connected to the clamping block (10), and a second telescopic spring is sleeved on the telescopic rod (13).

6. The high-strength bicycle rear seat bracket according to claim 1, characterized in that: A second slide groove is provided on the inner wall at the lower end of the storage groove, the second slide groove is slidably connected to the slider, the slider is fixedly connected to the lower end of the side tail rod (6), a first slide groove is provided on both sides of the inner wall of the storage groove, the first slide groove is slidably connected to the slide plate (7), the slide plate (7) is fixedly connected to the side tail rod (6), rear tail rods (8) are evenly installed between the side tail rods (6), and mounting plates (14) are symmetrically installed at the lower ends of the side tail rods (6).

7. The high-strength bicycle rear seat bracket according to claim 6, characterized in that: An upper screw rod (15) is rotatably arranged between the mounting plates (14), the lower end of the upper screw rod (15) is threadedly connected to an adjusting sleeve (16), the lower end of the adjusting sleeve (16) is threadedly connected to the upper end of a lower screw rod (17), the lower end of the lower screw rod (17) is fixedly connected to a fixing plate (18), a strong magnetic disk (19) is fixedly installed on the fixing plate (18), a strong magnetic disk (19) is also installed on the U-shaped frame (1), and the strong magnetic disks (19) are magnetically connected to each other.

8. The high-strength bicycle rear seat bracket according to claim 1, characterized in that: There are twelve connecting plates (301), six connecting plates (301) are fixedly mounted on the lower end of the horizontal plate (5), and the other six connecting plates (301) are fixedly mounted on the upper end of the U-shaped frame (1).

Images