CN208325514U - A kind of Children's Bicycle Frame - Google Patents
A kind of Children's Bicycle Frame Download PDFInfo
- Publication number
- CN208325514U CN208325514U CN201820961156.XU CN201820961156U CN208325514U CN 208325514 U CN208325514 U CN 208325514U CN 201820961156 U CN201820961156 U CN 201820961156U CN 208325514 U CN208325514 U CN 208325514U
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- China
- Prior art keywords
- vehicle frame
- arc section
- back board
- children
- rear portion
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Abstract
The utility model relates to carriage for children technical fields, more particularly to a kind of Children's Bicycle Frame, including vehicle frame front, seat portion and the vehicle frame rear portion being sequentially connected, vehicle frame is equipped with chain guard on rear portion, the vehicle frame rear portion is in forked, vehicle frame rear portion includes the left back board and right back board being oppositely arranged, and the chain guard covers on the right back board；The chain guard is annular in shape, and chain guard has the first arc section, straightway and the second arc section, and the right back board is gradually abutted to first arc section from the straightway, and second arc section is connect with the front end at the vehicle frame rear portion.Beneficial effect is: the utility model is mounted on the chain guard of integral type is seamless on integrally formed vehicle frame, chain shade assembly and vehicle frame is set to constitute an entirety, keep its shape more beautiful, solves traditional vehicle frame and the installation of each component is inconvenient, the problem of connection structure complexity.
Description
Technical field
The utility model relates to carriage for children technical fields, and in particular to a kind of Children's Bicycle Frame.
Background technique
Children's Bicycle Frame is the main body frame of child's bicycle, to security performance, comfort level, service life, is consolidated
Property etc. has a decisive role.But existing child's bicycle frame is there are practical plain, it is solid but heavy etc. to ask
Topic.
In order to make child's bicycle guarantee the safety of children and the beauty of vehicle in use, child's bicycle
Vehicle frame must have light, portable, and the advantages that conveniently connect with other assemblies, therefore the vehicle frame of child's bicycle seems
It is particularly important.
However traditional vehicle frame mainly uses iron pipe bending, big flat, is welded together pipe by high-temperature soldering.In such as
A kind of taper structure disclosed in state patent CN107933782A balances sliding steps vehicle carriage, including head tube, vehicle frame main beam pipe, in
Pipe, U-shaped rear fork, left claw hook, right claw hook, trident star-shaped support, the vehicle frame main beam pipe front end connection head tube, rear end are simultaneously
Pipe and U-shaped rear fork in connection；It is managed in trident star-shaped support one end connection, in addition both ends are separately connected U-shaped rear fork；It is described
Middle pipe, U-shaped rear fork, trident star-shaped support be connected with each other.Such vehicle frame is although cheap, but seems very heavy, and raw
Produce low efficiency, shape unsightly.If using Al pipe butt welding, although weight can reduce, shape is not beautiful enough, at the same manufacture at
This meeting is much higher.
In order to mitigate the weight of vehicle frame, the more beautiful product of shape is produced, and can make vehicle frame that there is some strength, existing people
Greatly mostly use magnesium alloy manufacture vehicle frame, vehicle frame integrated die-casting is formed, or the magnesium alloy component of each die cast is welded on
Together.Above-mentioned vehicle frame has the advantages that light weight, intensity height, high production efficiency.After if each component is formed by magnesium alloy pressure-casting
Weld together, then can manufacture the integrated vehicle frame of various beauties.Such vehicle frame receives pursuing for market.
However, although Magnesium Alloy Frame is received by the market, but many drawbacks are had been found that in actual production.For example, because
Existing vehicle frame all uses magnesium alloy component, so welding needs argon arc welding between magnesium alloy component, processing cost is high.This
Outside, it is also necessary to polish on the surface of welding position, the process of polishing is time-consuming and laborious.The special-shaped vehicle frame mold having can not be taken
The mode of core pulling, part car body will be processed into solid, increase cost, while also increase the weight of vehicle frame.In addition, if
Need to change the part colours of vehicle frame, it is also necessary to carry out the work such as paint spraying at corresponding position.The presence of above-mentioned drawback, sternly
Production efficiency and processing cost are affected again.
Utility model content
Purpose of the utility model is to solve the above problems, provide a kind of Children's Bicycle Frame.
In order to reach above-mentioned purpose of utility model, the utility model uses following technical scheme:
A kind of Children's Bicycle Frame, including vehicle frame front, seat portion and the vehicle frame rear portion being sequentially connected, on vehicle frame rear portion
Chain guard is installed, the vehicle frame rear portion is in forked, and vehicle frame rear portion includes the left back board and right back board being oppositely arranged, and the chain guard hides
It covers on the right back board；The chain guard is annular in shape, and chain guard has the first arc section, straightway and the second arc section, the right side
Back plate is gradually abutted to first arc section from the straightway, and the front end at second arc section and the vehicle frame rear portion connects
It connects.
Preferably, the vehicle frame front is equipped with engraved structure and reinforcer, and reinforcer and the engraved structure match, described
Engraved structure and reinforcer clamping.
Preferably, the chain guard includes the first occlusion part and the second occlusion part, and the first occlusion part is vertical with the second occlusion part
It is connected and in junction around the chain being arranged for accommodating chain.
Preferably, second occlusion part on first arc section, second arc section towards outside recess simultaneously
It is respectively formed the first mounting groove and the second mounting groove, correspondingly, is respectively formed on the lateral wall of the second occlusion part and first
The first protrusion and the second protrusion that arc section, the second arc section match.
Preferably, opening, first protrusion and the opening are equipped in the opposite place of the right back board on the straightway
Edge junction, right back board covers in opening, and opening is close to right back board by the first protrusion and extends and terminate in towards the second protrusion
The periphery of second mounting groove, two long sides of opening are connected with the surface of second occlusion part by inclined surface.
Preferably, second mounting groove is the circular trough formed around second arc section center of circle.
Preferably, the front end at the vehicle frame rear portion is equipped with the axis casing being laterally arranged, and the both ends difference of axis casing is convex
For the left back board, the lateral wall of the right back board, second mounting groove is equipped with first to match with the central siphon
Perforation, chain guard are set on the axis casing by the first perforation.
Preferably, diameter of the diameter of first arc section less than the second arc section.
Preferably, the width of the left back board and right back board is caudad successively decreased by the front end at vehicle frame rear portion.
Preferably, the tail end of the right back board and left back board is equipped with rear axle mounting groove, and first arc section is equipped with
The second perforation communicated with the rear axle mounting groove.
Preferably, first occlusion part and the second occlusion part junction form the excessive portion of circular arc.
Compared with prior art, beneficial effect is the utility model: the utility model is by the seamless installation of the chain guard of integral type
On integrally formed vehicle frame, so that chain shade assembly and vehicle frame is constituted an entirety, keep its shape more beautiful, solve traditional vehicle
Frame and the installation of each component are inconvenient, the problem of connection structure complexity.
The vehicle frame of the utility model is integrally formed, instead of traditional welding procedure, the easy production of unitized frame, and solution
It has determined and has produced the problem of this vehicle frame mould core pulling hardly possible.
In addition, the utility model uses the plastic part with better toughness in conjunction with Magnesium Alloy Frame component to substitute tradition
Magnesium alloy welding vehicle frame, after the problem for eliminating core pulling hardly possible, product design space design is big, and the plasticity of plastic part makes chain guard
A variety of beautiful appearances can be fabricated to, while alleviating the weight of vehicle frame.
The utility model save production mould can not the magnesium alloy member of core pulling need the processing cost of argon arc welding, in addition
The polishing work of the surface after welding is not needed.Plastic part can also directly be made into the component of different colours, eliminate and paint
The step of, it improves more environmentally friendly while production efficiency.Furthermore the expense of like products plastic part and its mold is closed than magnesium
The expense of gold and its mold is low.
Therefore, the utility model not only reduces magnesium alloy materials cost and die cost, improves production efficiency, moreover it is possible to
Designer, which is given, in product structure design more plays space.
Detailed description of the invention
Fig. 1 is the front view of vehicle frame；
Fig. 2 is the right view of vehicle frame；
Fig. 3 is the left view of vehicle frame；
Fig. 4 is the rearview of right one side of something of vehicle frame；
Fig. 5 is the top view of Fig. 3.
In figure: 1 vehicle frame front, 2 seat portions, 3 vehicle frame rear portions, 3-1 left back board, 3-2 right back board, 3-3 rear axle mounting groove, 4
Chain guard, the first arc section of 4-1,4-2 straightway, the second arc section of 4-3, the first occlusion part of 4-4, the second occlusion part of 4-5,4-6
One protrusion, the second protrusion 4-7,4-8 opening, 4-9 axis casing, 4-10 first perforate, and 4-11 second perforates, 4-12 arc transition
Portion, the inclined surface 4-13,4-14 chain, 5 engraved structures, 6 reinforcers.
Specific embodiment
Below in conjunction with the attached drawing in the embodiments of the present invention, to the technical scheme in the embodiment of the utility model into
Row clearly and completely describes, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, is fallen within the protection scope of the utility model.
The present embodiment is as shown in Figs. 1-5, a kind of Children's Bicycle Frame, including be sequentially connected vehicle frame front 1, seat portion
2, vehicle frame rear portion 3 and chain guard 4, vehicle frame front 1, seat portion 2, vehicle frame rear portion 3 are integrally formed.The vehicle frame rear portion 3 is in forked, vehicle
Frame rear portion 3 includes the left back board 3-1 being oppositely arranged and right back board 3-2, and the chain guard 4 covers on the right back board 3-2.
The chain guard 4 is annular in shape, and chain guard 4 has the first arc section 4-1, straightway 4-2 and the second arc section 4-3, described
Right back board 3-2 is gradually abutted to the first arc section 4-1 from the straightway 4-2, the second arc section 4-3 and the vehicle
The front end at frame rear portion 3 connects.Two semi arches that first arc section 4-1 and the second arc section 4-3 are oppositely arranged, facilitate chain
Transmission, and diameter of the diameter of the first arc section 4-1 less than the second arc section 4-3.
The chain guard 4 includes the first occlusion part 4-4 and the second occlusion part 4-5, the first occlusion part 4-4 and the second occlusion part 4-
5 are vertically connected and in junction around the chain 4-14 being arranged for accommodating chain.The outer surface of the first occlusion part 4-4
Arc transition 4-12 is formed with the outer surface connection of the second occlusion part 4-5.
The second occlusion part 4-5 on the first arc section 4-1, the second arc section 4-3 towards outside be recessed
It is respectively formed the first mounting groove and the second mounting groove, correspondingly, is respectively formed on the lateral wall of the second occlusion part 4-5 and the
The the first protrusion 4-6 and the second protrusion 4-7 that one arc section 4-1, the second arc section 4-3 match.First protrusion 4-6 and the second protrusion
The equal rounding off in outer surface of 4-7 and the second occlusion part 4-5.
On the straightway 4-2 in the opposite place the right back board 3-2 be equipped with opening 4-8, the first protrusion 4-6 with it is described
The edge junction of opening 4-8, right back board 3-2 are covered on opening 4-8, and opening 4-8 is close to right back board 3-2 by the first protrusion 4-6
Extend and terminate in the periphery of second mounting groove towards the second protrusion 4-7, makes second mounting groove around second circle
The center of circle of segmental arc 4-3 forms circular trough, can be coupled main driving wheel in the second mounting groove.
Two long sides of the opening 4-8 are connected with the surface of second occlusion part by inclined surface 4-13.
The front end at the vehicle frame rear portion 3 is equipped with the axis casing 4-9 being laterally arranged, and the both ends difference of axis casing 4-9 is convex
For the lateral wall of the left back board 3-1, the right back board 3-2, second mounting groove is equipped with to match with the central siphon
First perforation 4-10, chain guard 4 by first perforate 4-10 be set on the axis casing 4-9.Axis casing 4-9 is for pacifying
Fill pedal shaft.
The width of the left back board 3-1 and right back board 3-2 is caudad successively decreased by the front end at vehicle frame rear portion 3.The right back board
The tail end of 3-2 and left back board 3-1 are equipped with rear axle mounting groove 3-3, and the first arc section 4-1 is equipped with to be installed with the rear axle
The second perforation 4-11 that slot 3-3 is communicated.Vehicle frame can install rear-wheel by rear axle mounting groove 3-3, may be used also by rear axle mounting groove 3-3
To install two accessory whorls in main wheel two sides.
In addition, vehicle frame front 1 has engraved structure 5, engraved structure 5 is triangular in shape, and triangular structure keeps vehicle frame more steady
Gu and engraved structure 5 alleviates the weight of vehicle frame, saves materials.Reinforcer made of plastics can be assembled on the engraved structure 5
6 are decorated, and vehicle frame front 1 is not only strengthened, and also make shape more beautiful.The front end of vehicle frame front 1 also sets up front axle casing,
For being arranged handlebar.Seat casing is set in seat portion 2, for installing seat.Above-mentioned engraved structure 5 not only limits
Facilitate vehicle frame to be integrally formed in the design of three-legged structure, engraved structure 5, the easy production of unitized frame, solve production this
The problem of vehicle frame mould core pulling hardly possible, while engraved structure 5 can be made into other shapes or moulding, with reinforcer made of plastics
6 combine, and plastic part appearance can be made into different colours, keep vehicle frame more beautiful.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of Children's Bicycle Frame, which is characterized in that including vehicle frame front (1), seat portion (2) and the vehicle frame being sequentially connected
Rear portion (3) is equipped with chain guard (4) on vehicle frame rear portion (3), and for the vehicle frame rear portion (3) in forked, vehicle frame rear portion (3) include opposite
The left back board (3-1) and right back board (3-2) of setting, the chain guard (4) cover on the right back board (3-2)；The chain guard (4)
Annularly, chain guard (4) has the first arc section (4-1), straightway (4-2) and the second arc section (4-3), the right back board (3-
2) it is gradually abutted from the straightway (4-2) to first arc section (4-1), second arc section (4-3) and the vehicle
The front end at frame rear portion (3) connects.
2. a kind of Children's Bicycle Frame according to claim 1, which is characterized in that the vehicle frame front (1) is equipped with and engraves
Hollow structure (5) and reinforcer (6), reinforcer (6) and the engraved structure (5) match, the engraved structure (5) and reinforcer
(6) it is clamped.
3. a kind of Children's Bicycle Frame according to claim 1, which is characterized in that the chain guard (4) includes the first screening
Stopper (4-4) and the second occlusion part (4-5), the first occlusion part (4-4) and the second occlusion part (4-5) are vertically connected and in junction
Chain (4-14) for accommodating chain is set.
4. a kind of Children's Bicycle Frame according to claim 3, which is characterized in that second occlusion part (4-5) in
It is recessed on first arc section (4-1), second arc section (4-3) towards outside and is respectively formed the first mounting groove and
Two mounting grooves are correspondingly respectively formed and the first arc section (4-1), the second circle on the lateral wall of the second occlusion part (4-5)
The first protrusion (4-6) and the second protrusion (4-7) that segmental arc (4-3) matches.
5. a kind of Children's Bicycle Frame according to claim 4, which is characterized in that in institute on the straightway (4-2)
It states the opposite place right back board (3-2) and is equipped with opening (4-8), the edge junction of first protrusion (4-6) and the opening (4-8),
Right back board (3-2) covers on opening (4-8), and opening (4-8) is close to right back board (3-2) towards second by the first protrusion (4-6)
Protrusion (4-7) extends and terminates in the periphery of second mounting groove, two long sides and second occlusion part of opening (4-8)
Surface is connected by inclined surface (4-13).
6. a kind of Children's Bicycle Frame according to claim 5, which is characterized in that second mounting groove is around institute
State the circular trough of the second arc section center of circle (4-3) formation.
7. a kind of Children's Bicycle Frame according to claim 4 or 5 or 6, which is characterized in that the vehicle frame rear portion (3)
Front end be equipped with the axis casing (4-9) that is laterally arranged, the both ends of axis casing (4-9) protrude from the left back board (3- respectively
1), the lateral wall of the right back board (3-2), second mounting groove are equipped with the first perforation (4- to match with the central siphon
10), chain guard (4) is set on the axis casing (4-9) by the first perforation (4-10).
8. a kind of Children's Bicycle Frame according to claim 1, which is characterized in that first arc section (4-1)
Diameter of the diameter less than the second arc section (4-3).
9. a kind of Children's Bicycle Frame according to claim 1, which is characterized in that after the left back board (3-1) and the right side
The width of plate (3-2) is caudad successively decreased by the front end of vehicle frame rear portion (3).
10. a kind of Children's Bicycle Frame according to claim 1, which is characterized in that the right back board (3-2) and left back
The tail end of plate (3-1) is equipped with rear axle mounting groove (3-3), and first arc section (4-1) is equipped with and the rear axle mounting groove
The second perforation (4-11) that (3-3) is communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820961156.XU CN208325514U (en) | 2018-06-21 | 2018-06-21 | A kind of Children's Bicycle Frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820961156.XU CN208325514U (en) | 2018-06-21 | 2018-06-21 | A kind of Children's Bicycle Frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208325514U true CN208325514U (en) | 2019-01-04 |
Family
ID=64769343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820961156.XU Active CN208325514U (en) | 2018-06-21 | 2018-06-21 | A kind of Children's Bicycle Frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208325514U (en) |
-
2018
- 2018-06-21 CN CN201820961156.XU patent/CN208325514U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |