CN208439354U - A kind of stretchable rear bicycle - Google Patents

Abstract

The utility model discloses a kind of stretchable rear bicycles, including sliding bar set and composite rubber layer, the inside of the sliding bar set is respectively arranged with bearing bar and limiting slot, and limiting slot is located at the lower section of bearing bar, the limiting slot is internally provided with limited block, and disposed thread is provided with below the left end of limited block, the inside of the disposed thread is equipped with thread head, and control handle is provided with below thread head, the left end of the bearing bar is fixed with connection sleeve, and the left end for connecting sleeve is internally provided with fixing bolt, basic framework is provided with above the composite rubber layer.The stretchable rear bicycle, compared with existing ordinary bicycle back seat, the service performance of whole device is substantially increased while increasing structure, pass through the increase of structure, make the device that there is more preferably bearing capacity, and it can carry out effectively meeting the use demand of people from main regulation according to the needs of users.

Description

A kind of stretchable rear bicycle

Technical field

The utility model relates to bicycle accessories technical field, specially a kind of stretchable rear bicycle.

Background technique

Traditional bicycle is also known as bicycle or bicycle, the small-sized ground vehicles of usually two wheels.After people rides vehicle, with foot Pedal is power, is the environmentally protective vehicles.The vehicles that can be used as environmental protection are used to ride instead of walk, go on a journey；Increasingly More people using bicycle as fitness equipment be used to ride exercise, go on a tour；Bicycle itself is also a sports campaign, is had Road race, Mountain bike, Track cycling, stunt bicycle race etc..The bicycle rear end of transmission is general It is fitted with back seat, for accumulating article or manned.

And general rear seat construction is unified, relatively simple, the functionality in use process is insufficient, and loaded area is smaller, The limitation of indirect is formd for the quantity of belongings, is not well positioned to meet the use demand of people, for above-mentioned feelings Condition carries out technological innovation on the basis of existing rear bicycle.

Utility model content

The purpose of this utility model is to provide a kind of stretchable rear bicycles, to solve to propose in above-mentioned background technique General rear bicycle structure is unified, relatively simple, and the functionality in use process is insufficient, and loaded area is smaller, for The quantity of belongings forms the limitation of indirect, is not well positioned to meet the use demand problem of people.

To achieve the above object, the utility model provides the following technical solutions: a kind of stretchable rear bicycle, including cunning Dynamic loop bar and composite rubber layer, the inside of the sliding bar set are respectively arranged with bearing bar and limiting slot, and limiting slot is located at and holds The lower section of weight bar, the limiting slot is internally provided with limited block, and is provided with disposed thread below the left end of limited block, described The inside of disposed thread is equipped with thread head, and control handle is provided with below thread head, and the left end of the bearing bar is fixed There is connection sleeve, and the left end for connecting sleeve is internally provided with fixing bolt, is provided with basis above the composite rubber layer Frame, and composite rubber layer is located at the top of sliding bar set, and fixed pedestal is respectively arranged with above the basic framework and is prevented Sliding rubber strip, and anti-slip rubber item is located at the top of fixed pedestal, the fixed pedestal is internally provided with movable plate, and activity The rear and front end of plate is provided with sliding block.

Preferably, it is an integral structure between the bearing bar and limited block, and the external dimensions structure of limited block and limit The inside dimension structure of position slot matches.

Preferably, it is welding between the left end of the bearing bar and connection sleeve, and connects central axes and the load-bearing of sleeve Angle between the central axes of bar is 70 °, and bearing bar is through the inside of sliding bar set.

Preferably, to be fixedly connected between the upper end face and the lower end of thread head of the control handle, and handle is controlled By being connected inside cooperation between thread head and disposed thread and sliding bar set left end.

Preferably, between the rear surface of the composite rubber layer and the upper end face of sliding bar set and composite rubber layer Upper end face and basic framework rear surface between be to fit closely, and basic framework is set as bending structure.

Preferably, the center line between the anti-slip rubber item about movable plate is symmetrical, and movable plate is distinguished by sliding block It is connected with fixed pedestal and basic framework.

Compared with prior art, the utility model has the beneficial effects that the stretchable rear bicycle, compared to common Rear bicycle substantially increases the service performance of whole device while increasing structure, by the increase of structure, make the dress Setting has more preferably bearing capacity, and can carry out effectively meeting people's from main regulation according to the needs of users Use demand；It can keep generating between sliding bar set and bearing bar by the cooperation between limited block and limiting slot and turn It is dynamic, and limited block can carry out slide along limiting slot；Welding between bearing bar and connection sleeve, which can be improved, holds The bearing capacity of weight bar, and the inclination for connecting sleeve can keep the levelness of bearing bar；Spiral shell can be driven by controlling handle The rotation of line head, by the CONTACT WITH FRICTION between thread head upper end and limited block to the opposite position between sliding bar set and bearing bar It sets and is fixed；Composite rubber layer can provide buffer capacity in the top of frame based on, reduce bearing bar and connect with sleeve is connect The shearing stress at place is connect, and the basic framework of bending structure can realize small-scale limit operation in loading；Anti-slip rubber Item can be improved loading, it is manned during frictional force, and movable plate can use sliding block carry out horizontal position on adjusting, To improve the loaded area of entire back seat.

Detailed description of the invention

Fig. 1 is the utility model main view half section structure diagram；

Fig. 2 is the utility model overlooking structure diagram；

Fig. 3 is partial enlargement structural representation at the utility model A.

In figure: 1, sliding bar set, 2, bearing bar, 3, limiting slot, 4, limited block, 5, disposed thread, 6, thread head, 7, control Handle, 8, connection sleeve, 9, fixing bolt, 10, composite rubber layer, 11, basic framework, 12, fixed pedestal, 13, anti-slip rubber Item, 14, movable plate, 15, sliding block.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of stretchable rear bicycle, including sliding Loop bar 1 and composite rubber layer 10, the inside of sliding bar set 1 are respectively arranged with bearing bar 2 and limiting slot 3, and limiting slot 3 is located at and holds The lower section of weight bar 2, limiting slot 3 is internally provided with limited block 4, and is provided with disposed thread 5 below the left end of limited block 4, holds It is an integral structure between weight bar 2 and limited block 4, and the inside dimension structure of the external dimensions structure of limited block 4 and limiting slot 3 It matches, can keep will not generating between sliding bar set 1 and bearing bar 2 by the cooperation between limited block 4 and limiting slot 3 and turn It is dynamic, and limited block 4 can carry out slide along limiting slot 3, and the inside of disposed thread 5 is equipped with thread head 6, and screw thread First 6 lower section is provided with control handle 7, controls to be fixedly connected between the upper end face and the lower end of thread head 6 of handle 7, and Control handle 7 passes through to be connected inside cooperation and 1 left end of sliding bar set between thread head 6 and disposed thread 5, is passed through and is controlled hand Handle 7 can drive the rotation of thread head 6, by the CONTACT WITH FRICTION between 6 upper end of thread head and limited block 4 to sliding bar set 1 with Relative position between bearing bar 2 is fixed, and the left end of bearing bar 2 is fixed with connection sleeve 8, and connects the left end of sleeve 8 Be internally provided with fixing bolt 9, be welding between the left end and connection sleeve 8 of bearing bar 2, and connect the central axes of sleeve 8 with Angle between the central axes of bearing bar 2 is 70 °, and bearing bar 2 is through the inside of sliding bar set 1, bearing bar 2 with connect The bearing capacity of bearing bar 2 can be improved in welding between sleeve 8, and the inclination for connecting sleeve 8 can keep the water of bearing bar 2 Pingdu, the top of composite rubber layer 10 is provided with basic framework 11, and composite rubber layer 10 is located at the top of sliding bar set 1, multiple Close rubber layer 10 rear surface and sliding bar set 1 upper end face between and composite rubber layer 10 upper end face and basis It is to fit closely, and basic framework 11 is set as bending structure between the rear surface of frame 11, composite rubber layer 10 can There is provided buffer capacity with the top for basic framework 11, reduce bearing bar 2 with connect the shearing stress of 8 junction of sleeve, and bend The basic framework 11 of shape structure can realize small-scale limit operation in loading, and the top of basic framework 11 is respectively arranged with Fixed pedestal 12 and anti-slip rubber item 13, and anti-slip rubber item 13 is located at the top of fixed pedestal 12, the inside of fixed pedestal 12 Movable plate 14 is provided with, and the rear and front end of movable plate 14 is provided with sliding block 15, about movable plate between anti-slip rubber item 13 14 center line is symmetrical, and movable plate 14 is connected with fixed pedestal 12 and basic framework 11 respectively by sliding block 15, anti-skidding rubber Adhesive tape 13 can be improved loading, it is manned during frictional force, and movable plate 14 can use sliding block 15 carry out horizontal position On adjusting, to improve the loaded area of entire back seat.

Working principle: when using the stretchable rear bicycle, connection sleeve 8 is placed on to the outside of seatpost, benefit first It is fixedly connected with 2 fixing bolts 9, it is fixed before can according to the size of rear-wheel to operation is highly adjusted, It is secondary that operation is adjusted to the loaded area of back seat according to the figure of user or the size of article, by sliding bar set 1 along holding Weight bar 2 carries out horizontal sliding, rotation control handle 7 when activity to suitable position, using between thread head 6 and disposed thread 5 Cooperation reduces the spacing of thread head 6 and limited block 4, to increase the laminating degree between thread head 6 and limited block 4 to movable loop bar 1 position is fixed, and movable plate 14 can use the adjusting on the progress of sliding block 15 horizontal position, and two ways is equal The loaded area that entire back seat can be improved, here it is the working principles of the stretchable rear bicycle.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of stretchable rear bicycle, including sliding bar set (1) and composite rubber layer (10), it is characterised in that: the cunning The inside of dynamic loop bar (1) is respectively arranged with bearing bar (2) and limiting slot (3), and limiting slot (3) is located at the lower section of bearing bar (2), The limiting slot (3) is internally provided with limited block (4), and is provided with disposed thread (5), institute below the left end of limited block (4) The inside for stating disposed thread (5) is equipped with thread head (6), and control handle (7) is provided with below thread head (6), described to hold The left end of weight bar (2) is fixed with connection sleeve (8), and the left end for connecting sleeve (8) is internally provided with fixing bolt (9), described It is provided with above composite rubber layer (10) basic framework (11), and composite rubber layer (10) is located at the top of sliding bar set (1), Fixed pedestal (12) and anti-slip rubber item (13), and anti-slip rubber item (13) are respectively arranged with above the basic framework (11) Positioned at the top of fixed pedestal (12), the fixed pedestal (12) is internally provided with movable plate (14), and movable plate (14) Rear and front end is provided with sliding block (15).

2. a kind of stretchable rear bicycle according to claim 1, it is characterised in that: the bearing bar (2) and limit Block is an integral structure between (4), and the inside dimension structure kissing of the external dimensions structure of limited block (4) and limiting slot (3) It closes.

3. a kind of stretchable rear bicycle according to claim 1, it is characterised in that: the left end of the bearing bar (2) It is welding between sleeve (8) with connecting, and the angle connected between the central axes of sleeve (8) and the central axes of bearing bar (2) is 70 °, and bearing bar (2) is through the inside of sliding bar set (1).

4. a kind of stretchable rear bicycle according to claim 1, it is characterised in that: described to control the upper of handle (7) To be fixedly connected between end surfaces and the lower end of thread head (6), and controls handle (7) and pass through thread head (6) and disposed thread (5) Between cooperation and sliding bar set (1) left end inside be connected.

5. a kind of stretchable rear bicycle according to claim 1, it is characterised in that: the composite rubber layer (10) Between rear surface and the upper end face of sliding bar set (1) and the upper end face of composite rubber layer (10) and basic framework (11) Rear surface between be to fit closely, and basic framework (11) is set as bending structure.

6. a kind of stretchable rear bicycle according to claim 1, it is characterised in that: the anti-slip rubber item (13) it Between about movable plate (14) center line it is symmetrical, and movable plate (14) by sliding block (15) respectively with fixed pedestal (12) and basis Frame (11) is connected.