CN102152832A

CN102152832A - Dismountable bicycle frame structure

Info

Publication number: CN102152832A
Application number: CN2010101152520A
Authority: CN
Inventors: 张钧迪; 张永泰; 张文泰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-11
Filing date: 2010-02-11
Publication date: 2011-08-17

Abstract

The invention discloses a dismountable bicycle frame structure, which comprises a central frame, a front frame, and a rear frame, wherein the central frame is provided with a seat tube and a connecting tube respectively, and a central screwing piece screwed between the seat tube and the connecting tube; the front frame comprises a front tube; the front tube and the connecting tube as well as the front tube and the seat tube are respectively and mutually screwed and connected by a double-head screw rod or a screwing tube component; therefore, the front frame is combined with the central frame; while the rear frame comprises a grapping claw seat; the grapping claw seat and the connecting tube as well as the grapping claw seat and the seat tube are respectively and mutually screwed and connected by a double-head screw rod or a screwing tube component; therefore, the rear frame is combined with the central frame; in this way, the purposes of convenient carry, convenient dismounting, and stable structure are achieved.

Description

But the bicycle frame structure of assembling and dismantling

Technical field

The present invention relates to a kind of bicycle assembly, but particularly a kind of bicycle frame structure of conveniently detachable and the assembling and dismantling of carrying.

Background technology

Mostly general cycle frame is to utilize metal tube with the welding manner combination, to form the firm integral bike vehicle frame of structure, and along with after society has started one bicycle rotary island agitation in recent years, there are more and more people to take to cycle racing, and drive everywhere for convenience, develop at present and a kind of Folding Bicycle that is convenient for carrying, it is to utilize pin-jointed structure is set on vehicle frame, and make vehicle frame can rely on folding mode convenient for collecting, can be convenient for carrying no matter take automobile, train or rapid transit.

Yet the vehicle frame of existing Folding Bicycle is after folding, and the vehicle frame volume of minimizing is quite limit, still can't significantly reduce shared space effectively, and the pin-jointed structure that folding is used is arranged on the vehicle frame, is easy to cause the danger of body frame structure for automotive undercapacity, part still haves much room for improvement.

Summary of the invention

Because existing Folding Bicycle vehicle frame fails significantly to reduce the volume after the folding, and the doubt that undercapacity is arranged easily is set with pin-jointed structure, therefore, but the inventor provides a kind of bicycle frame structure with the means stack-mounted assembling and dismantling that are spirally connected, to reach easy disassembly, to be convenient for carrying and purpose that structure is firm, for reaching above-mentioned purpose, technological means of the present invention such as following.

But the present invention system provides a kind of bicycle frame structure of assembling and dismantling, and it includes a central bracket, a front frame and an after poppet, wherein:

Central bracket is the support body of one, and includes a connection pipe and a pipe respectively in two ends up and down, and connection pipe is intubate before the front side protrusion forms; The seat pipe protrude to form the intubate of going forward in the front side;

Front frame screws togather the front side that is arranged at central bracket, and includes before one pipe, a double end screw rod and the pipe assembly that is spirally connected, in preceding pipe rear side respectively towards connection pipe and seat tube side to being convexly equipped with on one pipe tap and pipe tap once; A wherein place of intubate and following pipe tap and go forward intubate and last pipe tap before two-thread screw selectively is bolted in down; Another place that is not provided with two-thread screw of intubate and following pipe tap and go forward intubate and last pipe tap before the pipe assembly that is spirally connected then selectively is bolted in down; And

The after poppet one is fixedly arranged on the rear side of central bracket.

But the bicycle frame structure of described assembling and dismantling, wherein, the negative thread stroke of the wherein body that described two-thread screw two ends are spirally connected respectively is greater than the negative thread stroke of another body.

But the bicycle frame structure of described assembling and dismantling, wherein, described two-thread screw two ends spiral shell respectively are provided with a packing sleeve pipe, the packing sleeve pipe be sheathed on respectively with the pairing body of two-thread screw on.

But the bicycle frame structure of described assembling and dismantling, wherein, the described pipe assembly that is spirally connected includes one first assembling Guan Yuyi, the second assembling bar, and the first assembling pipe inside has provided a movable through hole, and is formed with negative thread in a free end; The second assembling bar penetrates in the first assembling bar, and spiral shell is located on this free end, and this second assembling bar external diameter is less than movable through hole internal diameter.

But the bicycle frame structure of described assembling and dismantling, wherein, the described pipe assembly that is spirally connected further includes one first nut and two second nuts, and this first nut spiral shell is located on the fixed end of the first assembling pipe, and cover is placed on the pairing body; This two second nut then respectively spiral shell be located at second the assembling bar two ends, and respectively the cover be placed on first the assembling pipe free end and pairing body on.

But the present invention also provides a kind of bicycle frame structure of assembling and dismantling, and it includes a central bracket, a front frame and an after poppet, wherein:

Central bracket is the support body of one, and includes a connection pipe and a pipe respectively in two ends up and down, and connection pipe protrudes in rear side and forms intubate afterwards; The seat pipe protrudes in rear side and forms back intubate on;

The front frame one is fixedly arranged on the front side of central bracket;

After poppet screws togather the rear side that is arranged at central bracket, and includes and collude pawl seat, a double end screw rod and the pipe assembly that is spirally connected, collude the pawl seat in the front side respectively towards connection pipe and seat tube side to being convexly equipped with on one assembling pipe and assembling pipe once; Two-thread screw selectively is bolted in down the back and inserts and a wherein place of assembling pipe and going up back intubate and last assembling pipe down; The pipe assembly that is spirally connected then selectively is bolted in down back intubate and another place that is not provided with two-thread screw of assembling pipe and going up back intubate and last assembling pipe down.

But the bicycle frame structure of described assembling and dismantling, wherein, the described pipe assembly that is spirally connected includes one first assembling Guan Yuyi, the second assembling bar, and the first assembling pipe inside has provided a movable through hole, and is formed with negative thread in a free end; The second assembling bar penetrates in the first assembling bar, and spiral shell is located on this free end, and the second assembling bar external diameter is less than movable through hole internal diameter.

But the present invention provides a kind of bicycle frame structure of assembling and dismantling again, and it includes a central bracket, a front frame and an after poppet, wherein:

Central bracket is provided with a connection pipe, a Guan Yuyi central authorities spiro connecting piece respectively in opposite directions accordingly in two ends up and down, connection pipe in the front side protrude form before intubate, protrude up in the centre and to form intubate, in rear side protrude form after intubate; The seat pipe protrude to form the intubate of going forward in the front side, protrude down in the centre to form intubate on, protrudes in rear side to form back intubate on; Central authorities spiro connecting piece be screwed together connection pipe following intubate with the seat pipe last intubate;

After poppet screws togather the rear side that is arranged at central bracket, and includes and collude pawl seat, a double end screw rod and the pipe assembly that is spirally connected, collude the pawl seat in the front side respectively towards connection pipe and seat tube side to being convexly equipped with on one assembling pipe and assembling pipe once; Two-thread screw selectively is bolted in down back intubate and a wherein place of assembling pipe and going up back intubate and last assembling pipe down; Be spirally connected and insert another place that is not provided with two-thread screw of managing and going up back intubate and last assembling pipe after the pipe assembly then selectively is bolted in down with following assembling.

But the bicycle frame structure of described assembling and dismantling, wherein, described central spiro connecting piece is a double end screw rod.

But the bicycle frame structure of described assembling and dismantling, wherein, described central spiro connecting piece is the pipe assembly that is spirally connected.

But the bicycle frame structure of described assembling and dismantling, wherein, the negative thread stroke of the wherein body that described each two-thread screw two ends are spirally connected respectively is greater than the negative thread stroke of another body.

But the bicycle frame structure of described assembling and dismantling, wherein, described each two-thread screw two ends spiral shell respectively are provided with a packing sleeve pipe, the packing sleeve pipe be sheathed on respectively with the pairing body of two-thread screw on.

But the bicycle frame structure of described assembling and dismantling, wherein, the described pipe assembly that is spirally connected further includes one first nut and two second nuts, and wherein, this first nut spiral shell is located on the fixed end of the first assembling pipe, and cover is placed on the pairing body; This two second nut then respectively spiral shell be located at second the assembling bar two ends, and respectively the cover be placed on first the assembling pipe free end and pairing body on.

Rely on above-mentioned technological means, but the bicycle frame structure of assembling and dismantling of the present invention is only with single two-thread screw can be spirally connected central vehicle frame, front vehicle frame or back vehicle frame, therefore, can respectively front vehicle frame, central vehicle frame or back vehicle frame be disassembled in response to the demand of reality, and be broken into the body of rod and body, be convenient for carrying to reach, for convenience detach and purpose that structure is firm.

Description of drawings

Fig. 1 is the part sectional view of first embodiment of the invention;

Fig. 2 is a first embodiment of the invention central bracket exploded block diagram;

Fig. 3 is the is olation action scheme drawing of first embodiment of the invention;

Fig. 4 is the part sectional view of another kenel of first embodiment of the invention;

Fig. 5 is another kenel central bracket exploded block diagram of first embodiment of the invention;

Fig. 6 is the is olation action scheme drawing of another kenel of first embodiment of the invention;

Fig. 7 is the part sectional view of second embodiment of the invention;

Fig. 8 is the part sectional view of third embodiment of the invention;

Fig. 9 is arranged at outward appearance planar view on the bicycle for the present invention.

Description of reference numerals: 10-central bracket; The 11-connection pipe; The down preceding intubate of 110-; Intubate under the 111-; 112-is the back intubate down; 12-seat pipe; The 120-intubate of going forward; The last intubate of 121-; The last back of 122-intubate; 13,13A, 13B-two-thread screw; 130,130A, 130B-packing sleeve pipe; 131-elasticity breach; 132-packing auricle; The 133-quick detach draws handle; 14,14A, the 14B-pipe assembly that is spirally connected; The 140-first assembling pipe; The 140A-fixed end; The 140B-free end; The movable through hole of 140C-; The 141-second assembling bar; 141A-penetrates end; The 141B-binding end; 142-first nut; 143-second nut; The 20-front frame; Pipe before the 21-; The last pipe tap of 210-; Pipe tap under the 211-; The 30-after poppet; 31-colludes the pawl seat; The last assembling pipe of 310-; 311-is the assembling pipe down.

The specific embodiment

But first preferred embodiment of the bicycle frame structure of assembling and dismantling of the present invention please refer to Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 9, and it includes a central bracket 10, a front frame 20 and an after poppet 30, wherein:

Central bracket 10 is provided with a connection pipe 11 and a pipe 12 respectively in opposite directions accordingly in going up two ends down, and be connected in a central screw piece between connection pipe 11 and the seat pipe 12, wherein, connection pipe 11 is for being the body of trident, and intubate 110 before including, once intubate 111 and back intubate 112 once, wherein, down preceding intubate 110 is protruded and is formed at connection pipe 11 front sides, and has negative thread; Following intubate 111 is protruded up and is formed in the middle of the connection pipe 11, and has negative thread; Following back intubate 112 is protruded and is formed at connection pipe 11 rear sides, and has negative thread;

Seat pipe 12 is for to be the body of trident, and includes on the intubate 120 of going forward, back intubate 122 on the intubate 121 and, and wherein, the intubate of going forward 120 is protruded to be formed at and managed 12 front sides, and has negative thread; Last intubate 121 is protruded down and is formed in the middle of the seat pipe 12, and has negative thread, and corresponding to the following intubate 111 of connection pipe 11; Last back intubate 122 is protruded and is formed at seat pipe 12 rear sides, and has negative thread;

Central authorities' screw piece is connected between connection pipe 11 and the seat pipe 12, and can be a double end screw rod 13 (as shown in Figure 1) or and be spirally connected and manage assembly 14 (as shown in Figure 4), wherein:

When central screw piece is two-thread screw 13, please refer to Fig. 1, this two-thread screw 13 is connected between connection pipe 11 and the seat pipe 12, and be formed with external thread section respectively in two ends up and down, and on the last intubate 121 of the following intubate 111 that is screwed together in connection pipe 11 respectively and seat pipe 12, preferably, wherein negative thread stroke on following intubate 111 and the last intubate 121 is greater than another negative thread stroke, thus, an end that is beneficial to two-thread screw 13 can screw in the negative thread stroke longer pipe body, the other end then can withdraw from the short body of negative thread stroke, to reach the purpose of assembly and disassembly smoothly;

Further, on the external thread section at two-thread screw 13 two ends, be respectively equipped with a packing sleeve pipe 130, one end inner face of each packing sleeve pipe 130 be formed with negative thread movably spiral shell be located on the thread segment of two-thread screw 13, other end inner face then forms reaming respectively, be placed on cooresponding following intubate 111 or the last intubate 121 with cover, strengthen the structure steadiness that two-thread screw 13 is screwed together in down intubate 111 and last intubate 121 to reach, preferably, as shown in Figure 2, each packing sleeve pipe 130 cuts open vertically on tube wall and is provided with an elasticity breach 131, then extend the corresponding packing auricle 132 of pair of parallel in elasticity breach 131 both sides, being equipped with a quick detach respectively in the two ends of this a pair of packing auricle 132 draws 133, utilize quick detach to draw 133 pull-ups are discharged or pull the button packing, can reach get loose quick detach or urgent fixing effect;

When central screw piece is managed assembly 14 for being spirally connected, please refer to Fig. 4, this pipe assembly 14 that is spirally connected is connected between connection pipe 11 and the seat pipe 12, and include one first assembling pipe 140, one second assembling bar 141, one first nut 142 and two second nuts 143, wherein, the first assembling pipe 140 is for being hollow tube body, and form a fixed end 140A and a free end 140B respectively in two ends, and form a movable through hole 140C in inside, this fixed end 140A is formed with outside thread, and screw togather in the following intubate 111 that is arranged at connection pipe 11, this free end 140B then is formed with negative thread; Movable through hole 140C is provided in the first assembling pipe 140 by the inner that the outer end of fixed end 140A extends to free end 140B, and internal diameter is slightly larger than the internal diameter of free end 140B;

The second assembling bar 141 is the cylindrical body of rod, be arranged on the first assembling pipe 140 can penetrate move mode, and form respectively in two ends and to have externally threaded one and penetrate an end 141A and a binding end 141B, and form no screw thread and external diameter in interlude and be slightly less than and penetrate the structure of holding 141A and binding end 141B external diameter, screw togather in the free end 140B that is arranged at the first assembling pipe 140 and penetrate end 141A, binding end 141B screws togather in the last intubate 121 that is arranged at seat pipe 12;

First nut 142 is formed with negative thread in an end inner face, but and screw togather on the fixed end 140A that is arranged at the first assembling pipe 140 with the spiral move mode, first nut 142 then forms reaming in the inner face of the other end, is placed on cover on the following intubate 111 of connection pipe 11;

This two second nut 143 is formed with negative thread respectively at an end inner face, but and screw togather with the spiral move mode respectively and be arranged at the penetrating on end 141A and the binding end 141B of the second assembling bar 141, this two second nut 143 holds inner face to form reaming respectively at other, and respectively on the last intubate 121 of free end 140B and the seat pipe 12 of the upper shield first assembling pipe 140, in order to the first assembling pipe 140 of fit firmly and connection pipe 11 and the second assembling bar 141 and seat pipe 12, reach the purpose of strengthening the screw-joining structure steadiness;

Front frame 20 is arranged at the front side of central bracket 10, and pipe 21 and two preceding screw pieces before including, wherein, preceding pipe 21 is connected in the vertical tube of bicycle, so that the Handlebar of bicycle setting to be provided, then be convexly equipped with on one pipe tap 210 and pipe tap 211 once towards a connection pipe 11 and seat pipe 12 directions respectively in preceding pipe 21 rear sides, and go up pipe tap 210 and be formed with negative thread respectively with following pipe tap 211;

This two preceding screw piece connects spiral shell respectively and is located between seat pipe 12 and the preceding pipe 21, and between connection pipe 11 and the preceding pipe 21, and the combination, two that can be two two-thread screw 13A respectively the be spirally connected combination (as Fig. 1 and shown in Figure 2) of pipe assembly 14A of the combination of pipe assembly 14A or double end screw rod 13A collocation one that is spirally connected, its set-up mode such as following:

When this before two screw piece be that double end screw rod 13A collocation one is when being spirally connected the combination of pipe assembly 14A, the structure of the two-thread screw 13A and the pipe assembly 14A that is spirally connected and the two-thread screw 13 of central bracket 10 are roughly the same with the pipe assembly 14 that is spirally connected, yet, two-thread screw 13A is different because of the demand that cooperates bicycle body with the length of the pipe assembly 14A that is spirally connected, wherein, two-thread screw 13A be screwed together the following pipe tap 211 of before connection pipe 11 following intubate 110 and preceding pipe 21 on the thread segment at two-thread screw 13A two ends then respectively spiral shell be provided with a packing sleeve pipe 130A, each packing sleeve pipe 130A is sheathed on to packing respectively on cooresponding down preceding intubate 110 and the following pipe tap 211, preferably, a wherein negative thread stroke of intubate 110 and following pipe tap 211 is greater than another negative thread stroke down, thus, an end that is beneficial to two-thread screw 13A can screw in the negative thread length longer pipe body, the other end then can withdraw from the short body of negative thread, to reach the purpose of assembly and disassembly smoothly; The be screwed together last pipe tap 210 of go forward intubate 120 and preceding pipe 21 of seat pipe 12 of the pipe assembly 14A that is spirally connected;

After poppet 30 include collude pawl seat 31 and two the back screw pieces, wherein, collude on the hind axle that pawl seat 31 is arranged at bicycle, and be convexly equipped with on one assembling pipe 310 and assembling pipe 311 once towards a connection pipe 11 and seat pipe 12 directions respectively, and go up assembling pipe 310 and be formed with negative thread respectively with assembling pipe 311 down in colluding pawl seat 31 front sides;

This two backs screw piece connects spiral shell respectively and is located at seat pipe 12 and colludes between the pawl seat 31, and connection pipe 11 and colluding between the pawl seat 31, and the combination, two that can be two two-thread screw 13B respectively be spirally connected pipe assembly 14B combination or or the be spirally connected combination (as Fig. 1 and shown in Figure 2) of pipe assembly 14B of double end screw rod 13B collocation one, it is provided with distinguishes mode such as following:

When this two backs screw piece is that double end screw rod 13B collocation one is when being spirally connected the combination of pipe assembly 14B, the structure of the two-thread screw 13B and the pipe assembly 14B that is spirally connected and the two-thread screw 13 of central bracket 10 are roughly the same with the pipe assembly 14 that is spirally connected, yet two-thread screw 13B is different because of the demand that cooperates bicycle body with the length of the pipe assembly 14B that is spirally connected, wherein, two-thread screw 13B the be screwed together following back intubate 112 and the following assembling pipe 311 that colludes pawl seat 31 of connection pipe 11, on the thread segment at two-thread screw 13B two ends then respectively spiral shell be provided with a packing sleeve pipe 130B, each packing sleeve pipe 130B is sheathed on to packing cooresponding back down intubate 112 respectively and assembles down on the pipe 311, preferably, a wherein negative thread stroke of following back intubate 112 and following assembling pipe 311 is greater than another negative thread stroke, thus, an end that is beneficial to two-thread screw 13B can screw in the negative thread length longer pipe body, the other end then can withdraw from the short body of negative thread, to reach the purpose of assembly and disassembly smoothly; The pipe assembly 14B that is spirally connected be screwed together seat pipe 12 go up back intubate 122 with collude pawl seat 31 go up assembling pipe 310.

But the bicycle frame structure of assembling and dismantling of the present invention, when dismounting, please refer to Fig. 1, Fig. 3, Fig. 4 and Fig. 6, quick detach with the last two packing sleeve pipe 130A of the two-thread screw 13A of front frame 20 draws 133 difference pull-ups release packing sleeve pipe 130A earlier, and spiral packing sleeve pipe 130A moves its interlude direction towards two-thread screw 13A, rotate two-thread screw 13A again its intubate 110 directions before down are screwed into, so that the end in addition of two-thread screw 13A withdraws from down pipe tap 211;

Referring again to Fig. 6, simultaneously with front frame 20 be spirally connected pipe assembly 14A last two second nuts 143 respectively spiral move towards second interlude of assembling bar 141, because the interlude external diameter of the second assembling bar 141 is slightly less than the external diameter that penetrates end 141A and binding end 141B, therefore, second nut, 143 spiral shells are sheathed on the interlude of the second assembling bar 141 after going out thread segment with can move freely, then rotation is spirally connected and manages the second assembling bar 141 of assembly 14A again, make it towards the first assembling pipe, 140 inner moving, when the second assembling bar 141 moves to when penetrating among the movable through hole 140C that end 141A enters the first assembling pipe 140, the last pipe tap 210 of the binding end 141B of the second assembling bar 141 pipe 21 before also simultaneously spiral withdraws from manages 21 before can successfully dismantling;

Then, intubate 110 before again two-thread screw 13A rotation being withdrawed from down, and seat is withdrawed from the fixed end 140A rotation of the first assembling pipe 140 manage 12 the intubate 120 of going forward, then can finish the dismounting of front frame 20;

The dismounting mode of after poppet 30 is roughly identical with front frame 20, the quick detach of earlier two-thread screw 13B being gone up packing sleeve pipe 130B draws a 133B pull-up to discharge, so that two-thread screw 13B can be screwed into towards following back intubate 112 directions, make the end in addition of two-thread screw 13B withdraw from the following assembling pipe 311 that colludes pawl seat 31, two second nuts 143 of managing assembly 14B that will be spirally connected simultaneously discharge, so that the second assembling bar, 141 spirals enter in the first assembling pipe 140, and make binding end 141B withdraw from colluding pawl seat 31 go up assembling pipe 310, rotate the first assembling pipe 140 again, make its upward back intubate 122 that withdraws from seat pipe 12, can successfully vehicle frame 30 dismountings in back be finished;

At last, the dismounting mode of central bracket 10 is roughly identical with front frame 20 and after poppet 30, when central screw piece is two-thread screw 13, then the quick detach that discharges packing sleeve pipe 130 on the two-thread screw 13 earlier draws 133, and rotate two-thread screw 13 towards descending intubate 111 directions to be screwed into, and make the other end of two-thread screw 13 withdraw from intubate 121, can dismantle down seat pipe 12 apace, then rotate two-thread screw 13 and withdraw from connection pipe 11, can dismantle down connection pipe 11 apace; When central screw piece is managed assembly 14 for being spirally connected, discharge two second nuts 143 earlier, manage in 140 so that the second assembling bar, 141 spirals enter first assembling, and make binding end 141B withdraw from intubate 121, rotate the first assembling pipe 140 again, make it withdraw from connection pipe 11, connection pipe 11 can be dismantled down apace, thus, the tubulose of dispersion and shaft-like can be successfully cycle frame be disassembled into, to reduce volume significantly, reach for convenience detach simultaneously and purpose that be convenient for carrying.

Please refer to Fig. 7, second preferred embodiment of the present invention and first preferred embodiment are roughly the same, yet, after poppet 30 and the seat pipe 12 of central bracket 10 and the structure that sets firmly of connection pipe 11 formation integral types, when dismounting, only need decompose front frame 20 and manage assembly 14A or two-thread screw 13A, can dismantle cycle frame apace with being spirally connected of central bracket 10.

Please refer to Fig. 8, the 3rd preferred embodiment of the present invention and first preferred embodiment are roughly the same, yet front frame 20 and central bracket 10 form the structure that sets firmly of integral types, when dismounting, only need dismantle be spirally connected pipe assembly 14B or two-thread screw 13B on after poppet 30 and the central bracket 10, can dismantle cycle frame apace.

The above person in addition, it only is preferred embodiment of the present invention, but the bicycle frame structure of assembling and dismantling of the present invention, be not limited to the structure that sets firmly of front frame 20 and central bracket 10 formation integral types, also or after poppet 30 and central bracket 10 form the structure that sets firmly of integral types, generally the simple equivalent of doing according to the present patent application claim and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.

Claims

But 1. the bicycle frame structure of assembling and dismantling, it includes a central bracket, a front frame and an after poppet, it is characterized in that:

Central bracket is the support body of one, and includes a connection pipe and a pipe respectively in two ends up and down, and connection pipe is intubate before the front side protrusion forms; The seat pipe protrude to form the intubate of going forward in the front side;

Front frame screws togather the front side that is arranged at central bracket, and includes before one pipe, a double end screw rod and the pipe assembly that is spirally connected, in preceding pipe rear side respectively towards connection pipe and seat tube side to being convexly equipped with on one pipe tap and pipe tap once; A wherein place of intubate and following pipe tap and go forward intubate and last pipe tap before two-thread screw selectively is bolted in down; Another place that is not provided with two-thread screw of intubate and following pipe tap and go forward intubate and last pipe tap before the pipe assembly that is spirally connected then selectively is bolted in down; And

The after poppet one is fixedly arranged on the rear side of central bracket.
2. but the bicycle frame structure of assembling and dismantling as claimed in claim 1 is characterized in that, the negative thread stroke of the wherein body that described two-thread screw two ends are spirally connected respectively is greater than the negative thread stroke of another body.
3. but the bicycle frame structure of assembling and dismantling as claimed in claim 2 is characterized in that, described two-thread screw two ends spiral shell respectively are provided with a packing sleeve pipe, the packing sleeve pipe be sheathed on respectively with the pairing body of two-thread screw on.
4. but as the bicycle frame structure of claim 1,2 or 3 described assembling and dismantling, it is characterized in that, the described pipe assembly that is spirally connected includes one first assembling Guan Yuyi, the second assembling bar, and the first assembling pipe inside has provided a movable through hole, and is formed with negative thread in a free end; The second assembling bar penetrates in the first assembling bar, and spiral shell is located on this free end, and this second assembling bar external diameter is less than movable through hole internal diameter.
5. but the bicycle frame structure of assembling and dismantling as claimed in claim 4, it is characterized in that, the described pipe assembly that is spirally connected further includes one first nut and two second nuts, and this first nut spiral shell is located on the fixed end of the first assembling pipe, and cover is placed on the pairing body; This two second nut then respectively spiral shell be located at second the assembling bar two ends, and respectively the cover be placed on first the assembling pipe free end and pairing body on.
But 6. the bicycle frame structure of assembling and dismantling, it includes a central bracket, a front frame and an after poppet, it is characterized in that:

Central bracket is the support body of one, and includes a connection pipe and a pipe respectively in two ends up and down, and connection pipe protrudes in rear side and forms intubate afterwards; The seat pipe protrudes in rear side and forms back intubate on;

The front frame one is fixedly arranged on the front side of central bracket;

After poppet screws togather the rear side that is arranged at central bracket, and includes and collude pawl seat, a double end screw rod and the pipe assembly that is spirally connected, collude the pawl seat in the front side respectively towards connection pipe and seat tube side to being convexly equipped with on one assembling pipe and assembling pipe once; Two-thread screw selectively is bolted in down the back and inserts and a wherein place of assembling pipe and going up back intubate and last assembling pipe down; The pipe assembly that is spirally connected then selectively is bolted in down back intubate and another place that is not provided with two-thread screw of assembling pipe and going up back intubate and last assembling pipe down.
7. but the bicycle frame structure of assembling and dismantling as claimed in claim 6 is characterized in that, the negative thread stroke of the wherein body that described two-thread screw two ends are spirally connected respectively is greater than the negative thread stroke of another body.
8. but the bicycle frame structure of assembling and dismantling as claimed in claim 7 is characterized in that, described two-thread screw two ends spiral shell respectively are provided with a packing sleeve pipe, the packing sleeve pipe be sheathed on respectively with the pairing body of two-thread screw on.
9. but as the bicycle frame structure of claim 6,7 or 8 described assembling and dismantling, it is characterized in that, the described pipe assembly that is spirally connected includes one first assembling Guan Yuyi, the second assembling bar, and the first assembling pipe inside has provided a movable through hole, and is formed with negative thread in a free end; The second assembling bar penetrates in the first assembling bar, and spiral shell is located on this free end, and the second assembling bar external diameter is less than movable through hole internal diameter.
10. but the bicycle frame structure of assembling and dismantling as claimed in claim 9, it is characterized in that, the described pipe assembly that is spirally connected further includes one first nut and two second nuts, and this first nut spiral shell is located on the fixed end of the first assembling pipe, and cover is placed on the pairing body; This two second nut then respectively spiral shell be located at second the assembling bar two ends, and respectively the cover be placed on first the assembling pipe free end and pairing body on.
11. but the bicycle frame structure of assembling and dismantling, it includes a central bracket, a front frame and an after poppet, it is characterized in that:

Central bracket is provided with a connection pipe, a Guan Yuyi central authorities spiro connecting piece respectively in opposite directions accordingly in two ends up and down, connection pipe in the front side protrude form before intubate, protrude up in the centre and to form intubate, in rear side protrude form after intubate; The seat pipe protrude to form the intubate of going forward in the front side, protrude down in the centre to form intubate on, protrudes in rear side to form back intubate on; Central authorities spiro connecting piece be screwed together connection pipe following intubate with the seat pipe last intubate;

Front frame screws togather the front side that is arranged at central bracket, and includes before one pipe, a double end screw rod and the pipe assembly that is spirally connected, in preceding pipe rear side respectively towards connection pipe and seat tube side to being convexly equipped with on one pipe tap and pipe tap once; A wherein place of intubate and following pipe tap and go forward intubate and last pipe tap before two-thread screw selectively is bolted in down; Another place that is not provided with two-thread screw of intubate and following pipe tap and go forward intubate and last pipe tap before the pipe assembly that is spirally connected then selectively is bolted in down; And

After poppet screws togather the rear side that is arranged at central bracket, and includes and collude pawl seat, a double end screw rod and the pipe assembly that is spirally connected, collude the pawl seat in the front side respectively towards connection pipe and seat tube side to being convexly equipped with on one assembling pipe and assembling pipe once; Two-thread screw selectively is bolted in down back intubate and a wherein place of assembling pipe and going up back intubate and last assembling pipe down; Be spirally connected and insert another place that is not provided with two-thread screw of managing and going up back intubate and last assembling pipe after the pipe assembly then selectively is bolted in down with following assembling.
12. but the bicycle frame structure of assembling and dismantling as claimed in claim 11 is characterized in that described central spiro connecting piece is a double end screw rod.
13. but the bicycle frame structure of assembling and dismantling as claimed in claim 11 is characterized in that described central spiro connecting piece is the pipe assembly that is spirally connected.
14. but as the bicycle frame structure of claim 11,12 or 13 described assembling and dismantling, it is characterized in that the negative thread stroke of the wherein body that described each two-thread screw two ends are spirally connected respectively is greater than the negative thread stroke of another body.
15. but the bicycle frame structure of assembling and dismantling as claimed in claim 14 is characterized in that described each two-thread screw two ends spiral shell respectively are provided with a packing sleeve pipe, the packing sleeve pipe be sheathed on respectively with the pairing body of two-thread screw on.
16. but the bicycle frame structure of assembling and dismantling as claimed in claim 15, it is characterized in that, the described pipe assembly that is spirally connected includes one first assembling Guan Yuyi, the second assembling bar, and the first assembling pipe inside has provided a movable through hole, and is formed with negative thread in a free end; The second assembling bar penetrates in the first assembling bar, and spiral shell is located on this free end, and the second assembling bar external diameter is less than movable through hole internal diameter.
17. but the bicycle frame structure of assembling and dismantling as claimed in claim 16, it is characterized in that, the described pipe assembly that is spirally connected further includes one first nut and two second nuts, and this first nut spiral shell is located on the fixed end of the first assembling pipe, and cover is placed on the pairing body; This two second nut then respectively spiral shell be located at second the assembling bar two ends, and respectively the cover be placed on first the assembling pipe free end and pairing body on.
18. but as the bicycle frame structure of claim 11,12 or 13 described assembling and dismantling, it is characterized in that, the described pipe assembly that is spirally connected includes one first assembling Guan Yuyi, the second assembling bar, and the first assembling pipe inside has provided a movable through hole, and is formed with negative thread in a free end; The second assembling bar penetrates in the first assembling bar, and spiral shell is located on this free end, and the second assembling bar external diameter is less than movable through hole internal diameter.
19. but the bicycle frame structure of assembling and dismantling as claimed in claim 18, it is characterized in that, the described pipe assembly that is spirally connected further includes one first nut and two second nuts, and this first nut spiral shell is located on the fixed end of the first assembling pipe, and cover is placed on the pairing body; This two second nut then respectively spiral shell be located at second the assembling bar two ends, and respectively the cover be placed on first the assembling pipe free end and pairing body on.