CN213921361U

CN213921361U - Frame, bicycle and electric bicycle

Info

Publication number: CN213921361U
Application number: CN202022590796.4U
Authority: CN
Inventors: 吴高峰; 张舒
Original assignee: Kunshan Shunyirui Intelligent Technology Co ltd
Current assignee: Kunshan Shunyirui Intelligent Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-08-10
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a frame, bicycle and electric bicycle. The frame comprises a front tube with a first inner cavity, a rear tube with a second inner cavity and a bridging sheath with a third inner cavity, the third inner cavity penetrates through two ends of the bridging sheath, the bridging sheath is respectively in flexible connection with the front tube and the rear tube so that the first inner cavity, the second inner cavity and the third inner cavity are communicated with each other, and the first inner cavity, the second inner cavity and the third inner cavity are used for a brake cable and/or a rear speed reduction cable to pass through. The scheme of this embodiment can make bicycle and/or electric bicycle's brake line walk the line from the inner chamber of hollow head tube and back tube, be favorable to reducing the line length and the department of bending of brake line, improve bicycle and/or electric bicycle's brake performance, also be favorable to the holistic aesthetic property of bicycle and/or electric bicycle simultaneously.

Description

Frame, bicycle and electric bicycle

Technical Field

The utility model relates to a bicycle technical field, specific be a frame, bicycle and electric bicycle.

Background

With the changing of the common public's concept of travel modes, people tend to use bicycles to ride in daily life, especially during leisure travel on weekends. In view of the improvement of living standard of people, the requirements of consumers on the performances of shock absorption, comfort, quick response of braking and speed change, beauty and the like of bicycles are higher and higher.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect among the prior art, the embodiment of the utility model provides a frame, bicycle and electric bicycle, it can improve the response speed of bicycle and/or electric bicycle brake and variable speed under the prerequisite that does not influence bicycle and/or electric bicycle's damping performance, simultaneously, also improved bicycle and/or electric bicycle's aesthetic property.

The embodiment of the application discloses: a vehicle frame, comprising:

a head tube having a first lumen;

a rear tube having a second lumen;

the bridging sheath is provided with a third inner cavity with two through ends and is respectively in flexible connection with the front tube and the rear tube so as to enable the first inner cavity, the second inner cavity and the third inner cavity to be communicated with each other;

the first inner cavity, the second inner cavity and the third inner cavity are used for a brake cable and/or a rear speed changing cable to pass through.

Specifically, the bridging sheath includes:

the sheath main body is made of soft materials and comprises an annular side wall, a first end wall and a second end wall, the first end wall is arranged at one end, facing the front tube, of the side wall, the second end wall is arranged at one end, facing the rear tube, of the side wall, the first end wall and the second end wall enclose to form a third inner cavity, a first window used for communicating the third inner cavity with the outside is arranged on the first end wall, a second window used for communicating the third inner cavity with the outside is arranged on the second end wall, at least one first through hole is further arranged on the first end wall, and at least one second through hole is further arranged on the second end wall;

the first fixing piece comprises a first main body and a first tongue piece arranged on the first main body, the first main body is arranged in the third inner cavity, and the first tongue piece is arranged in the first window or the first through hole in a penetrating manner and extends out of the third inner cavity to be connected with the front pipe, so that the third inner cavity is communicated with the first inner cavity through the first window;

the second fixing piece comprises a second main body and at least one second tongue piece arranged on the second main body, the second main body is arranged in the third inner cavity, and the second tongue piece penetrates through the second through hole and extends out of the third inner cavity to be connected with the rear pipe, so that the third inner cavity is communicated with the second inner cavity through the second window.

Specifically, the frame further comprises a connecting block with a fourth inner cavity, one end of the connecting block is connected with the rear pipe so that the fourth inner cavity is communicated with the second inner cavity, and the other end of the connecting block is connected with the second tongue piece so that the third inner cavity is communicated with the fourth inner cavity through the second window.

Specifically, the frame further comprises a seat tube arranged on the front tube in a penetrating mode, the diameter of the seat tube is smaller than the inner diameter of the first inner cavity, a connecting portion is arranged on the seat tube, the first tongue piece is arranged in the first window in a penetrating mode and extends out of the third inner cavity to be connected with the connecting portion, the first fixing piece further comprises at least one positioning unit arranged on the first main body, and the positioning unit is used for being arranged in the first through hole in a penetrating mode.

Specifically, the sheath main body is made of rubber or leather.

Specifically, the sheath body made of rubber is wavy in the long axis direction thereof.

Specifically, the frame still includes well pipe assembly, well pipe assembly includes first standpipe and second standpipe, the one end of first standpipe with the one end of second standpipe is connected with predetermineeing the contained angle, the other end of first standpipe with the front tube is connected, the other end of second standpipe with the back union coupling.

Specifically, the rear tube comprises a rear lower fork tube assembly and a rear upper fork tube assembly which are connected, one end, deviating from the rear upper fork tube assembly, of the rear lower fork tube assembly is connected with the middle tube assembly, one end, deviating from the rear lower fork tube assembly, of the rear upper fork tube assembly is connected with the second vertical tube, and the second inner cavity is arranged in the rear upper fork tube assembly.

The embodiment of the application also discloses: a bicycle comprises a frame, a brake cable and/or a rear speed change cable, wherein the brake cable and/or the rear speed change cable are sequentially arranged in the first inner cavity, the third inner cavity and the second inner cavity in a penetrating mode.

The embodiment of the application also discloses: an electric bicycle comprises a bicycle frame, a brake cable and/or a rear speed change cable, wherein the brake cable and/or the rear speed change cable are sequentially arranged in the first inner cavity, the third inner cavity and the second inner cavity in a penetrating mode.

The utility model discloses following beneficial effect has at least:

1. at present, a soft-tail bicycle and/or an electric bicycle mostly adopt a damping unit to flexibly connect the front section and the rear section of a frame, so that a front tube and a rear tube of the frame are usually designed in a disconnecting manner, and lines such as a brake cable, a rear speed change cable and the like of the bicycle and/or the electric bicycle are usually routed along the front tube, a middle tube and a rear lower fork tube assembly (as shown in fig. 9). The wiring mode can cause the line to be overlong, the line has a bending phenomenon at the joint of each pipe, the resistance of the line is increased, the braking and speed changing force required by the bicycle and/or the electric bicycle is larger, and the problems of delay in braking and speed changing time effectiveness and the like exist. According to the scheme in the embodiment, the bridging sheath is adopted to flexibly connect the rear tube and the front tube, the connection mode of the rear tube and the front tube is not changed, the routing of the brake cable and the rear speed change cable is shorter and smoother under the condition that the shock absorption performance of the bicycle and/or the electric bicycle is not influenced, the bending phenomenon does not exist on the lines, and the braking and speed change performance of the bicycle and/or the electric bicycle is improved.

2. Adopt above-mentioned scheme, the frame of this embodiment can make lines such as bicycle and/or electric bicycle's brake line, rear speed change line set up inside the pipe, so, can improve the pleasing to the eye of accomodating of bicycle and/or electric bicycle line.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a vehicle frame in an embodiment of the present invention;

FIG. 2 is a schematic view of a connection structure of the front tube, the rear upper fork tube assembly and the bridging sheath according to an embodiment of the present invention;

fig. 3 is a schematic view of the connection between the sheath body and the first fixing member according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first fixing member in an embodiment of the present invention;

FIG. 5 is a schematic view of the connection between the sheath body and the second fixing member according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a second fixing member according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a connecting block in an embodiment of the present invention;

FIG. 8 is a schematic structural view of a seat tube in an embodiment of the present invention;

FIG. 9 is a comparison of the modified front and rear brake cable and/or rear brake cable routing.

Reference numerals of the above figures: 1. a middle tube assembly; 11. a first vertical tube; 12. a second standpipe; 2. a head tube; 21. a first wire hole; 3. a rear lower fork tube assembly; 4. a rear upper fork tube assembly; 41. a first branch pipe; 42. a second branch pipe; 5. a bridging sheath; 51. a sheath body; 511. a side wall; 512. a first end wall; 513. a second end wall; 52. a first fixing member; 521. a first body; 522. a first tongue piece; 523. a positioning unit; 53. a second fixing member; 531. a second body; 532. a second tongue; 6. connecting blocks; 61. a pipeline; 62. a slot; 63. connecting holes; 7. a seat tube; 71. a connecting portion; 8. a shock absorbing unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the frame of the present embodiment may include a middle tube assembly 1, a front tube 2, a rear lower fork tube assembly 3, a rear upper fork tube assembly 4, and a bridging sheath 5. Wherein:

the front tube 2 has a first lumen and the rear tube has a second lumen.

Bridging sheath 5 has the third inner chamber that both ends link up, and bridging sheath 5 is soft with head tube 2 and back pipe respectively to make first inner chamber, second inner chamber and third inner chamber communicate each other, thereby make lines such as bicycle and/or electric bicycle's brake line, back speed change line can wear to establish in first inner chamber, third inner chamber, second inner chamber in proper order. The soft connection in this embodiment means that the bridging sheath 5 does not exert a rigid force on the anterior tube 2 and the posterior tube.

By means of the structure, the frame has the following advantages:

1. at present, the soft tail bicycle and/or the electric bicycle mostly adopt the damping unit 8 to flexibly connect the front section and the rear section of the frame, so a break-off design is often adopted between the front tube 2 and the rear tube of the frame, and the lines of the brake cable, the rear speed change cable and the like of the bicycle and/or the electric bicycle are usually routed along the front tube 2, the middle tube and the rear lower fork tube assembly 3 (as shown in fig. 9). The wiring mode can cause the line to be overlong, the line has a bending phenomenon at the joint of each pipe, the resistance of the line becomes large, the braking and speed changing force required by the bicycle and/or the electric bicycle is large, and the problem of delay in braking aging exists. According to the scheme in the embodiment, the bridging sheath 5 is adopted to flexibly connect the rear tube and the front tube 2, the connection mode of the rear tube and the front tube is not changed, the routing of the brake cable and the rear speed change cable is shorter and smoother under the condition that the shock absorption performance of the bicycle and/or the electric bicycle is not influenced, the bending phenomenon does not exist on the lines, and the braking and speed change performance of the bicycle and/or the electric bicycle is improved.

Referring to fig. 1 and 2, the frame of the present embodiment may further include a middle pipe assembly 1, where the middle pipe assembly 1 may include a first vertical pipe 11 and a second vertical pipe 12, and one end of the first vertical pipe 11 is connected to one end of the second vertical pipe 12 at a predetermined included angle. One end of the front pipe 2 can be connected with the other end of the first vertical pipe 11, and one end of the front pipe 2 far away from the first vertical pipe 11 can be provided with a first wire hole 21 communicated with the first inner cavity. The first wire hole 21 allows a brake cable, a rear speed change cable, etc. of a bicycle and/or an electric bicycle to pass through the first inner cavity. The rear tube may include a rear under-stay assembly 3 and a rear over-stay assembly 4. One end of the rear lower fork tube assembly 3 can be connected with the middle tube assembly 1. The second inner chamber of back pipe can set up on last breeches pipe subassembly 4 in the back, and the one end of last breeches pipe subassembly 4 in the back is connected with the other end of fork pipe subassembly 3 down in the back, and this end of last breeches pipe subassembly 4 in the back can be equipped with second line hole (not shown), and lines such as brake cable, back speed change line that this second line hole can supply the holding in the second inner chamber are worn out. The other end of the rear upper fork tube assembly 4 is connected with the other end of the second standpipe 12 (the end not connected with the first standpipe 11).

Specifically, the connection angle between the first vertical pipe 11 and the second vertical pipe 12 may be between 0 to 90 °. The preset included angle may be designed according to the stroke requirement of the damping unit 8 of the bicycle and/or the electric bicycle.

Specifically, referring to fig. 1, the rear upper fork tube assembly 4 of the present embodiment may include a first branch tube 41 and a second branch tube 42 which are oppositely disposed, and the second inner cavity may be disposed on the first branch tube 41 and/or the second branch tube 42. Preferably, the first branch pipe 41 and the second branch pipe 42 of the present embodiment are both provided with a second inner cavity, in other words, the first branch pipe 41 and the second branch pipe 42 of the present embodiment are both hollow structures, which is beneficial to reducing the weight of the frame. The second wire holes may be provided on the first and/or

second branch pipes

41 and 42. One end of each of the first branch pipe 41 and the second branch pipe 42 is connected with the rear lower fork assembly 3, and the other end of each of the first branch pipe 41 and the second branch pipe 42 is connected with the second vertical pipe 12.

Referring to fig. 2, the bridging sheath 5 of the present embodiment may specifically include a sheath main body 51 having a third inner cavity, a first fixing member 52 for connecting the sheath main body 51 and the front tube 2, and a second fixing member 53 for connecting the sheath main body 51 and the first branch tube 41 and/or the second branch tube 42.

Further, as shown in fig. 2 to 6, the sheath main body 51 may be made of a soft material, and may include a ring-shaped side wall 511, a first end wall 512 disposed at an end of the side wall 511 facing the front tube 2, and a second end wall 513 disposed at an end of the side wall 511 facing the rear tube (specifically, the first branch tube 41 and/or the second branch tube 42). A third inner cavity is defined among the side wall 511, the first end wall 512 and the second end wall 513, a first window for communicating the third inner cavity with the outside is arranged on the first end wall 512, and a second window for communicating the third inner cavity with the outside is arranged on the second end wall 513. The first fixing member 52 includes a first main body 521 and a first tongue piece 522 disposed on the first main body 521, when the first fixing member 52 is used for connection, the first main body 521 may be disposed in the third inner cavity to abut against the first end wall 512, and the first tongue piece 522 may be disposed through the first window and extend out of the third inner cavity to be connected to the front tube 2, so that the third inner cavity is communicated with the first inner cavity through the first window. The second fixing member 53 may include a second main body 531 and at least one second tongue 532 disposed on the second main body 531, when the second fixing member 53 is used for connection, the second main body 531 may be disposed in the third inner cavity to abut against the second end wall 513, and the second tongue 532 may be disposed in the second window and protrude out of the third inner cavity to be connected with the rear tube (specifically, the first branch tube 41 and/or the second branch tube 42) so that the third inner cavity communicates with the second inner cavity.

Further, as shown in fig. 2 to 6, the first end wall 512 may further include at least one first through hole (not shown), the first main body 521 of the first fixing member 52 may be substantially annular, the inner hole thereof corresponds to the first window, the first tongue 522 is substantially located at the center of the inner hole of the first main body 521, and the first tongue 522 does not completely block the inner hole of the first main body 521 or the first window, so as to ensure that the third inner cavity can communicate with the first inner cavity. The first main body 521 may further include at least one positioning unit 523, and the positioning unit 523 may be disposed through the first through hole of the first end wall 512 to assist the first main body 521 in positioning, so as to improve the installation accuracy of the first main body 521, and prevent the first main body 521 from being displaced during installation, thereby blocking the first window. Preferably, the first end wall 512 of the present embodiment may have a plurality of first through holes, and the first body 521 may have a plurality of positioning units 523. The annular first body 521 can increase the connection area between the sheath body 51 and the first fixing element 52, thereby increasing the connection strength between the two. Similarly, the second end wall 513 may be provided with at least one second through hole (not shown), the second main body 531 of the second fixing member 53 may be substantially annular, an inner hole thereof corresponds to the second window, the second tongue piece 532 is disposed on the first main body 521 and located outside the inner hole of the first main body 521, the second tongue piece 532 may be inserted into the second through hole to connect with the first branch pipe 41 and/or the second branch pipe 42, and at this time, the second tongue piece 532 may play a role in positioning the second main body 531 during installation. The second end wall 513 of the present embodiment may be provided with a plurality of second through holes, the second body 531 may be provided with a plurality of second tongues 532, and preferably, the second end wall 513 may be provided with 2 second through holes, and the second body 531 may be provided with 2 second tongues 532.

As shown in fig. 2 and 8, the frame of the present embodiment may further include a seat tube 7 inserted through the front tube 2 for mounting a seat, and the diameter of the seat tube 7 is smaller than the inner diameter of the first inner cavity. The seat tube 7 may be provided with a coupling portion 71 for coupling with the first tongue 522, and the first tongue 522 and the coupling portion 71 may be coupled by a screw.

Referring to fig. 2 and 7, the vehicle frame of the present embodiment may further include a connection block 6 provided on the second vertical pipe 12 to be connected to the first branch pipe 41 and the second branch pipe 42. The connection block 6 may be provided with a fourth lumen and at least one conduit 61 communicating with the fourth lumen. The conduit 61 is used to connect with the first branch pipe 41 or the second branch pipe 42 so that the fourth lumen communicates with the second lumen. The side of the connecting piece 6 facing away from the first and

second branch tubes

41, 42 is connected to the second tongue 532, so that the third and fourth lumens communicate via the second window. Specifically, a slot 62 for receiving the second tongue piece 532 is disposed on a side of the connection block 6 connected to the second tongue piece 532, the second tongue piece 532 may have a hole for connection, and a connection hole 63 corresponding to the hole may also be disposed on a top of the connection block 6, and after the second tongue piece 532 is installed in the slot 62, the connection block 6 and the second tongue piece 532 may be connected by inserting a screw into the connection hole 63.

When the sheath body 51 is directly connected to the first and/or

second branch tubes

41 and 42, the connection end may be much smaller than the end of the sheath body 51 connected to the front tube 2, which may cause a large variation in the outer diameter of the sheath body 51 in the long axis direction, and may not facilitate the production of the sheath body 51. The connecting block 6 is adopted to connect the rear upper fork tube assembly 4 and the sheath main body 51 in a transition mode, so that the problem can be solved, and the size change of the sheath main body 51 along the long axis direction is small.

The sheath main body 51 of the present embodiment can be made of soft materials such as rubber or leather, so as to ensure that the rear upper fork tube assembly 4 and the front tube 2 can be flexibly connected. When the sheath body 51 is made of rubber, the sheath body 51 may be wavy along the long axis direction thereof, that is, the sheath body 51 has a certain redundancy along the long axis direction thereof, and the redundancy may be such that the sheath body 51 does not deform when being pressed or pulled after being installed, and thus does not exert a force on the rear upper fork assembly 4 or the front tube 2, thereby not affecting the drivability of the bicycle and/or the electric bicycle.

Preferably, referring to fig. 1-3 and 5, the first end wall 512 may be recessed in the third inner cavity compared to the end portion of the side wall 511, that is, the first end wall 512 may be connected to the inner side wall 511 of the side wall 511, and a certain distance is provided between the first end wall 512 and the end portion of the side wall 511. Therefore, the side wall 511 corresponding to the distance can be coated on the outer wall of the front pipe 2, which is beneficial to improving the connection tightness of the two, and can prevent rainwater, sundries and the like from entering the third inner cavity from the connection position of the two. Similarly, the second end wall 513 may be recessed in the third inner cavity compared to the end portion of the side wall 511, so that a portion of the side wall 511 may be covered on the connecting block 6 to prevent rainwater, impurities and the like from entering the fourth inner cavity.

Specifically, the included angle between the front tube 2 and the rear upper fork tube assembly 4 of the present embodiment is between 160 ° and 180 °, so that it can be better ensured that the lines can be smoothly transited in the first inner cavity, the third inner cavity and the second inner cavity.

The bicycle of this embodiment can include the frame, brake cable and/or rear speed change line described in this embodiment, and brake cable and/or rear speed change line can set gradually in first inner chamber, third inner chamber and second inner chamber, and the one end of brake cable and/or rear speed change line is worn out outside first inner chamber from first line hole 21, and the other end of brake cable and/or rear speed change line is worn out outside the second inner chamber from the second line hole.

The electric bicycle of this embodiment can include the frame and the brake cable and/or the rear speed change cable described in this embodiment, and the brake cable and/or the rear speed change cable can be set up in first inner chamber, third inner chamber and second inner chamber in proper order, and outside the first inner chamber was worn out from first line hole 21 to the one end of brake cable and/or rear speed change cable, the other end of brake cable and/or rear speed change cable was worn out outside the second inner chamber from the second line hole.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A vehicle frame, comprising:

a head tube having a first lumen;

a rear tube having a second lumen;

2. The vehicle frame of claim 1, wherein the bridging sheath comprises:

3. The vehicle frame of claim 2, further comprising a connector block having a fourth lumen, one end of the connector block being connected to the rear tube such that the fourth lumen is in communication with the second lumen, and the other end of the connector block being connected to the second tongue such that the third lumen is in communication with the fourth lumen through the second window.

4. The frame of claim 2, further comprising a seat tube disposed on the front tube, wherein the seat tube has a diameter smaller than an inner diameter of the first inner cavity, a connecting portion is disposed on the seat tube, the first tongue piece is disposed in the first window and extends out of the third inner cavity to connect with the connecting portion, and the first fixing member further comprises at least one positioning unit disposed on the first main body, and the positioning unit is disposed in the first through hole.

5. The frame of claim 2, wherein the sheath body is made of rubber or leather.

6. The frame of claim 5, wherein said rubber boot body is corrugated along its long axis.

7. The frame of claim 1, further comprising a center tube assembly, wherein the center tube assembly comprises a first vertical tube and a second vertical tube, one end of the first vertical tube and one end of the second vertical tube are connected at a predetermined included angle, the other end of the first vertical tube is connected to the front tube, and the other end of the second vertical tube is connected to the rear tube.

8. The frame of claim 7, wherein the rear tube includes a rear down tube assembly and a rear up tube assembly that are joined, an end of the rear down tube assembly facing away from the rear up tube assembly being connected to the middle tube assembly, an end of the rear up tube assembly facing away from the rear down tube assembly being connected to the second standpipe, the second internal cavity being disposed in the rear up tube assembly.

9. A bicycle comprising a frame as claimed in any one of claims 1 to 8, a brake cable and/or a rear shift cable, said brake cable and/or said rear shift cable being threaded in sequence through said first, third and second cavities.

10. An electric bicycle, characterized in that, includes the frame, brake cable and/or rear transmission cable of any one of claims 1 to 8, the brake cable and/or the rear transmission cable are sequentially arranged in the first inner cavity, the third inner cavity and the second inner cavity.