CN2615028Y - Combined bicycle frame structure - Google Patents

Abstract

The utility model relates to a combined bicycle frame structure, which is mainly formed by mutually assembling a front frame and a rear frame; the lower pipe of the front frame is detachably inserted and locked in a combined sleeve fixed below the five-way pipe of the rear frame and crossing the five-way pipe, and a buckling member is arranged above the lower pipe of the front frame and buckled with the clamping member on the rear frame so as to quickly assemble the front frame and the rear frame into a complete frame.

Description

Combined bicycle frame structure

technical field

The utility model relates to a bicycle, in particular to a combined bicycle frame structure which is convenient to assemble and disassemble, is easy to store and transport, and can maintain the structural strength of the integral frame.

Background technique

The traditional frame structure of bicycles can be roughly divided into two categories: fixed type and folding type.

The fixed frame structure is to weld or weld the frame tubes such as the head tube, front fork, upper tube, down tube, seat cushion riser and rear fork into one body in a permanent way. Its advantage is that the structure of the frame is strong and the design of the exterior shape is not limited, and it is easy to design such an appearance shape as a rhombus frame that is easier for consumers to accept and love; and its disadvantage is that the packaging material is too bulky, causing storage problems. The cost of packaging, container transportation, etc. has increased significantly, especially the long frame length and light weight (especially electric bicycles), which make it inconvenient to store and carry. This shortcoming makes it difficult for consumers to use ordinary small bicycles Cars carry bicycles with this fixed frame structure to the suburbs for riding, which affects the leisure and fitness functions that bicycles should have; It is not only cumbersome to operate, but also may affect driving safety.

The folding frame structure is mainly to set at least one folding hinge member in the middle of the frame so that the frames can be folded back and forth or up and down. Cycling to the countryside. The disadvantage is that the strength of the frame structure is not good, and it must be reinforced with the help of a reinforcing structure, otherwise it is easy to produce breakage marks from the folding hinges, and its appearance is limited by the folding hinges and folding directions, so it is not easy to design. Consumers accept and love the appearance; in addition, in terms of the volume of packaging materials, although the length of the folding bicycle can be shortened after being folded, its overall width will increase significantly, so it cannot effectively reduce the volume of packaging materials after folding. For manufacturers and dealers, it is still inconvenient no matter whether it is stored or transported; at the same time, the weight of folding bicycles is heavier than that of ordinary stationary bicycles, and its portability is not as good as that of stationary bicycles.

This shows that the vehicle frame structure of bicycle still needs further improvement.

Contents of the invention

The purpose of this utility model is to provide a combined bicycle frame structure, which can be assembled and disassembled by ordinary users in a DIY manner without skilled skills, so that the volume of its packaging materials can be effectively reduced after being disassembled, and at the same time At least the bicycle can be disassembled into two parts, so that the weight of the bicycle can be dispersed, and the user can take it separately in stages. , Carry and carry or put it in the luggage compartment of the car, as a short-distance transfer (such as between the parking lot and the office) or for leisure riders who go out to the countryside.

The second purpose of the present utility model is to provide a combined bicycle frame structure. Since the bicycle is a means of transportation for a single person to ride, when many members of the family travel at the same time, they must use the car to carry multiple bicycles at the same time. The utility model can store multiple bicycles together in the luggage compartment of the car in the way of inserting the gaps, and can further exert the effect of reducing the volume of materials for convenient transportation.

Another object of the present utility model is to provide a combined bicycle frame structure. The assembly structure is suitable for bicycle frames of various shapes, especially suitable for diamond-shaped frames with good aesthetics and structural strength and as a shock absorber. The Y-shaped frame shape of the car makes the utility model not only convenient for disassembly and storage and easy to carry, but also maintains the integrity and aesthetics of the frame after assembly, and its structural strength also maintains the traditional one-piece molding Due to the structural strength of the vehicle frame, the combined structure of the utility model is applicable regardless of any vehicle frame or vehicle type.

Another object of the present utility model is to provide a combined bicycle frame structure. After dismantling, each part of the frame can be stored in a separate space, which can reduce the length and width of the package at the same time. The volume of packaging materials required after disassembly is about 60% less than that of traditional one-piece frame bicycles, effectively reducing the cost of storage, packaging, and container transportation for manufacturers and distributors.

Another object of the present utility model is to provide a combined bicycle frame structure, which is more convenient and quick to assemble or disassemble, has better frame structure strength and is suitable for such as rhombus frame and Y-shaped shock absorber frame. , Lady cars and other frame structures.

The purpose of the utility model is achieved through the following technical solutions. The combined bicycle frame structure of the utility model is mainly composed of a front frame and a rear frame assembled with each other. The front frame includes a head tube, a front fork tube that passes through the head tube from bottom to top, a handlebar connected to the top of the front fork tube, and is locked below the front fork tube with a quick release lever and is free to rotate The front wheel of the car, and an upper tube and a lower tube extending backward from the head tube; the upper and lower tubes can be configured as various frames such as the front triangle part of a rhombus frame or a Y-shaped frame Modeling, the tail end of the upper tube is connected with a seat tube for inserting and fixing a cushion, and a shock absorber is pivotally connected to the lower tube, and a fastening member is provided at the free end of the shock absorber. The rear frame includes a bottom bracket for installing a crank type pedal and a chain transmission, a pair of lugs for pivotally connecting a shock absorber shaft are arranged above the bottom bracket, and are respectively mounted on the shaft. The upper and lower ends of the rear fork extend backward a rear fork upper tube and a rear fork lower tube, and the tail ends of the rear fork upper and lower tubes are combined and pivotally connected to a rear wheel that can be rotated by the transmission device. The lower part of the bottom bracket tube is welded and fixed along its normal direction to a combined sleeve for the down tube of the front frame to be inserted through and fixed therein, and the front end of the upper tube of the rear fork is arranged to be compatible with the shock absorber. Clamping members whose free ends are snapped together.

When assembling the front and rear frames, the lower tube of the front frame is inserted through the combined casing of the rear frame, and the two ends are fixed by quick-lock clamps; at the same time, the shock absorber pivotally connected to the front frame The upper tube of the rear fork of the rear frame is fastened with the fastening member and the clamping member, so that the front and rear frames are assembled into a complete vehicle body by the above two connecting members.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the top perspective view of the utility model combined bicycle frame structure;

Fig. 2 is the disassembled three-dimensional exploded view of the combined bicycle frame structure;

Fig. 3 is the plane view of this combined bicycle frame structure;

Figure 4 is a disassembled plan view of the combined bicycle frame structure;

Fig. 5 is a partial enlarged perspective view of the first embodiment of the front frame and the combined sleeve in the combined bicycle frame structure;

Fig. 6 is an enlarged three-dimensional combined view of the second embodiment of the combined sleeve;

Fig. 7 is a schematic plan view of the combined bicycle frame structure after being disassembled and stored in separate and individual interstices so as to reduce the volume of the packaging materials to a minimum state;

Fig. 8 is a disassembled plan view of the second embodiment of the combined bicycle frame structure;

Fig. 9 is a plan view after the assembly of the second embodiment of the combined bicycle frame structure shown in Fig. 8;

Fig. 10 is a disassembled plan view of the third embodiment of the combined bicycle frame structure;

Fig. 11 is a plan view after the third embodiment of the combined bicycle frame structure shown in Fig. 10 is assembled;

Figure 12 is a disassembled plan view of the fourth embodiment of the combined bicycle frame structure; and

Fig. 13 is a plan view of the fourth embodiment of the combined bicycle frame structure shown in Fig. 12 after completion of assembly.

Detailed ways

Please refer to Fig. 1 to Fig. 4 at the same time. The combined bicycle frame structure provided by the utility model is mainly composed of a front frame 10 and a rear frame 30; wherein the lower tube 11 of the front frame 10 It is inserted and locked in a detachable manner in a combination sleeve 32 that is welded below the bottom bracket 31 of the rear frame 30 and spans the bottom bracket 31, while the front frame 10 is on the top of the lower tube 11. A fastening member 20 is provided so that it can be interlocked with a clamping member 33 arranged on the rear frame 30, and the front and rear frames 10, 30 can be quickly assembled into a single frame through the above two combined structures. Complete frame. When wanting to store or transport the combined bicycle, the fastening member 20 and the clamping member 33 can be disengaged from each other, and the lower tube 11 can be disassembled and separated from the combined sleeve 32, so that the front and rear bicycles can be quickly removed. Frames 10, 30 are disassembled into independent units, so as to reduce the volume of their packaging materials, which not only effectively reduces the storage and transportation costs of manufacturers and dealers, but also allows users to easily disassemble the front and rear frame 10, 30 is placed in the luggage compartment of a general car, and after being transported to the suburbs or a parking lot by a car, it is assembled into a complete vehicle frame, which is used as a short-distance transfer or for leisure riders in the suburbs.

The front frame 10 includes a head tube 12, a front fork tube 14 inserted through the head tube 12 from bottom to top, the top of the front fork tube 14 is connected with a handlebar 13, and the bottom of the front fork tube 14 is connected by a screw. Known combined components such as cap or quick release lever 16 are assembled with a freely rotatable front wheel 15, and the handle standpipe of this handlebar 13 and the head pipe 12 are generally equipped with two end bearings, so that this handlebar 13 can It can be freely rotated within an angular range to serve as the main steering member manipulated by the rider. The head tube 12 extends backwards with an appropriate inclination to connect an upper tube 17 and a lower tube 11, wherein the upper and lower tubes 17, 11 together form a frame tube assembly, and can be configured such as rhombus or Various types of vehicle frame structures such as Y shape are not limited by the legend of the utility model; the embodiment shown in Fig. 17 is to be welded on about the middle section of the lower tube 11, and a reinforced frame tube 18 is welded between the upper tube 17 and the head tube 12, and the tail end of the upper tube 17 is welded and connected for insertion and fixation The suspended seat tube 19 of a cushion 21 can be disassembled into two parts of the front frame 10 and the rear frame 30 in order to make the present embodiment smoothly, or the tail end of the down tube 11 can be smoothly combined with the bottom of the bottom bracket tube 31 The bushings 32 fit together, therefore, the seat tube 19 of the present embodiment is suspended in the air for the seat cushion riser 22 to be inserted into, and the seat cushion riser 22 of the seat cushion 21 has to use known quick-lock clamps 23 and the like. The detachable lock is locked on the seat tube 19 .

The combined bicycle provided by the utility model can be made into a shock-absorbing bicycle. For example, in the drawing, a shock absorber 24 is pivotally connected to the lower tube 11, and the free end of the shock absorber 24 is provided with the above-mentioned rear frame. 30 interlocking fastening members 20 . Also, if the utility model is not used as a shock-absorbing bicycle, the fastening member 20 can be arranged at any position above the down tube 11 such as the seat tube 19 . The fastening member 20 includes a perforated lug 25 welded on the free end of the shock absorber 24 or the seat tube 19 and a quick release lever 26 that can pass through the through hole on the lug 25, the quick release lever 26 It is a known component, which includes a screw rod and a nut that can be screwed together, and an eccentric trigger that is pivotally connected to the other end of the screw rod.

The rear frame 30 includes a bottom bracket 31 for installing a crank type pedal 34 and a chain transmission 35, and a pair of lugs for pivotally connecting a shock absorber shaft 27 are arranged above the bottom bracket 31. 37, the five-way pipe 31 and the shock absorber shaft 27 together constitute a five-way shock-absorber shaft, so that the front and rear frames 10, 30 can relatively pivot with the shaft 27 as the center of rotation, and utilize the shock absorber 24 Absorbs shocks from uneven road surfaces. The shock absorber rotating shaft 27 is in a pivoted state with a rear fork tube assembly comprising a rear fork connecting tube 36, a rear fork upper tube 38 and a rear fork lower tube 39. After merging first, a rear wheel 41 that can be driven and rotated by the transmission device 35 is assembled by using a known combination member such as a nut 40, so that the entire rear frame 30 forms a complete transmission assembly.

The utility model is characterized in that the lower part of the bottom bracket 31 is welded and connected along its normal direction, and there is a combination sleeve 32 for the lower tube 11 of the front frame 10 to be inserted through and fixed therein. When the casing 32 is used, part of the lower half of the bottom bracket 31 can be cut off in advance, so that the combined sleeve 32 can be partially embedded in the bottom bracket 31, so as to increase the welding area between the two, and then strengthen the two. The combination strength between; the length of the combination sleeve 32 can span the bottom bracket 31, and its two ends are open, so that the lower tube 11 can be inserted through the two open ends of the combination sleeve 32, and Two quick-lock clamps 55 , 56 are used to lock and clamp respectively, so as to enhance the bonding strength between the lower tube 11 and the composite sleeve 32 . In addition, the front end of the rear fork upper pipe 38 or the rear fork connecting pipe 36 is provided with a clamping member 33 that is interlocked with the buckling member 20 on the front frame 10; the clamping member 33 includes a corresponding On the two side splints 42 at the position of the fastening member 20, the two side splints 42 are respectively provided with through holes or slots 43 for the quick release rod 26 in the fastening member 20 to pass through; combine the fastening member 20 and clip When holding the member 33, the lugs 25 of the fastening member 20 are sandwiched between the two side splints 42 of the clamping member 33, and the quick release lever 26 is used to pass through the two side splints 42 and the lugs 25, and the quick release lever 26 The eccentric pull lever on one side presses the clamping plates 42 on both sides to the center and presses the lug 25 with its cam surface, so that the buckling member 20 and the clamping member 33 are clamped and fastened to each other.

Please refer to FIG. 5 , the lower tube 11 that can be inserted through the combined sleeve 32 has positioning pin holes on both sides near the tail end for an elastic pin 45 that is arranged in the lower tube 11 to pass through. 47, and a rotation limiting member 49 such as a concave groove is provided at its bottom surface; as for the combined sleeve 32, a corresponding positioning pin hole 50 corresponding to the positioning pin hole 47 on the lower tube 11 is provided, and corresponding to The corresponding groove 52 of the upper rotation member 49 of the lower tube 11 is provided with at least one axial slit 53, 54 at the two open ends of the combined sleeve 32 at the same time, so that both open ends of the lower pipe 11 have inwardly drawn slits. Tight elastic trend.

When you want to combine the front and rear frames 10 and 30, firstly make the tail end of the down tube 11 of the front frame 10 pass through the combination sleeve 32 of the rear frame 30, and use two quick-lock clamps 55 and 56 to fasten them. At the two open ends of the combined sleeve 32 with axial slits 53, 54, the two open ends are deformed inwardly to press the lower tube 11 passing therein; when the lower tube 11 is inserted, the elastic The pin 45 automatically springs into the positioning pin hole 50 on the combined sleeve 32 to achieve the purpose of automatically positioning the lower tube 11 .

The above-mentioned quick-lock clamps 55, 56 are also known components, and their structure is similar to that of the aforementioned quick-release lever 26, and also includes a screw and a nut that can be screwed together and an eccentric trigger that is pivotally connected to the other end of the screw. , but it is equipped with a buckle similar to a C-shape for a pipe to pass through on the screw rod. By pulling the eccentric lever, the cam surface can exert force on the buckle, so as to tighten it inward. The pipe fitting passing through the buckle, or the eccentric trigger lever can be pulled back in reverse to loosen the pipe fitting, so as to achieve the purpose of quickly disassembling or assembling the pipe fitting.

When the user inserts the lower tube 11 into the combined sleeve 32, the rotation limiting member 49 and the corresponding groove 52 can guide the user to insert the lower tube 11 in a correct direction to avoid the down tube The insertion direction of 11 is deviated, and at the same time, it can prevent improper relative rotational movement between the assembled lower tube 11 and the combination sleeve 32 .

Please refer to Fig. 6, which is a schematic structural view of the second embodiment 60 of the combined sleeve provided by the utility model. The combined sleeve 60 is provided with a positioning pin hole 61 for the elastic pin 45 to automatically pop into, and is opened in two Outside the axial slits 65 and 66 at the opening end, the corresponding component that originally matched with the upper rotating component 49 of the lower tube 11 is changed into a positioning button 64, and the positioning button 64 is partially screwed into the screw hole 63. In the combined sleeve 60 , the positioning button 64 is matched with the rotation limiting member 49 on the lower tube 11 , so as to prevent improper relative rotational movement between the lower tube 11 and the combined sleeve 32 .

In addition, the lower tube 11 and the combined sleeves 32, 60 can also be designed as oval tubes or other cross-sectional shapes, so that they have the functions of automatically guiding the insertion direction and limiting relative rotation, and the above-mentioned rotation limiting member can be omitted. set up.

Please refer to FIG. 7 , the combined bicycle provided by the utility model can be assembled and disassembled by ordinary users in a DIY manner. When disassembling, only the fastening member 20 and the clamping member 33 need to be separated from each other. And the down tube 11 is disassembled and separated from the combined casing 32, the front and rear frames 10, 30 can be quickly disassembled into independent individuals; if necessary, the front wheel 15 can be disassembled and separated from the front fork tube 14 , and rotate the handlebar 13 and the front fork tube 14 by 90 degrees so that they are parallel to the frame tubes 11, 17, 18, and at the same time lower the seat cushion 21 to the lowest position; The various components and components of the vehicle, such as the front frame 10, the rear frame 30 and the front wheel 15, etc., are stored separately or stacked with each other, or are packaged separately in containers such as canvas bags, which can reduce their size in the packaging at the same time. The length and width of the time make it save about 60% of the volume of packaging materials required after disassembly compared with traditional one-piece frame bicycles, effectively reducing the cost of storage, packaging, and container transportation for manufacturers and dealers ; At the same time, many bicycles can be stored in the luggage compartment of the car together in this way, so that when multiple family members travel, they can share the fun of riding in the wild.

When the utility model disassembles or assembles components or components such as the front frame 10, the rear frame 30, the front wheel 15, and the seat cushion 21, the quick-release levers 16, 26 or quick-lock clamps that can be quickly disassembled are used. Known components such as 23, 55, and 56 do not require users to have skilled disassembly and assembly skills, and can quickly complete disassembly or assembly operations in a short period of time. For ordinary users, it can be completed within 60 seconds on average The assembly and disassembly operation makes the utility model very suitable for dismantling and assembling the bicycle in a DIY mode for the user, and it is a new type of bicycle structure beneficial to the manufacturers, dealers and consumers.

Please refer to Fig. 8 and Fig. 9 at the same time, it is the second embodiment of the combined bicycle provided by the utility model, its main structure is roughly the same as that of the first embodiment shown in Fig. In addition, only the different parts of the structure are described in detail: in the first embodiment, the shock absorber rotating shaft 27 in the bottom bracket rotating shaft is located at the rear upper position of the bottom bracket 31, and is connected with the rear vehicle frame 30. The rear fork tube assembly forms a pivoted state; as for the second embodiment, the shock absorber shaft 27' in the bottom bracket shaft is set at the front position of the bottom bracket tube 31, and forms a pivoted state with the front frame 10 , in response to this variation embodiment, the combined sleeve 32 is welded and fixed below the shock absorber shaft 27' in the bottom bracket shaft, and spans the shock absorber shaft 27', so that the front frame 10 The lower tube 11 is detachably inserted and locked in the combined sleeve 32, and forms a relatively pivotable state with the shock absorber shaft 27'.

Please refer to Fig. 10 and Fig. 11 at the same time, it is the third embodiment of the combined bicycle provided by the utility model, its main structure is roughly the same as that of the first embodiment shown in Fig. To repeat, only the different parts of the structure will be described in detail: the third embodiment is mainly applied to the diamond-shaped frame of a bicycle, and the upper tube 17' and the lower tube 11' in the front frame 10' are respectively It is welded on the head tube 12' and extends backwards with different slopes respectively. A reinforced frame tube 18' is welded at the near end of the upper tube 17' and the lower tube 11' to connect the two, so that It is configured as the front triangular frame part of a combined rear rhombus frame; the tail end of the upper tube 17' is welded to a suspended seat tube 19' for inserting and fixing a cushion 21'. The component 20' is welded on the suspended seat tube 19'. Thereafter, the rear frame 30' is welded at the rear end of the bottom bracket tube 31' with a rear fork lower tube 39' extending backward, and a rear fork connecting tube extending upward is welded near the front end of the rear fork lower tube 39' 36', the top of the rear fork connecting pipe 36' is welded with a rear fork upper tube 38', and after the tail ends of the rear fork upper and lower pipes 38' and 39' are merged, a transmission device 35 can be assembled. 'Driving and rotating rear wheel 41'; the rear fork upper and lower tubes 38', 39' and rear fork connecting pipe 36' together form a rear fork tube assembly, and are configured as a rear rear rhombus frame The triangle frame part; as for the clamping member 33', it is arranged at the front end of the upper tube 38' of the rear fork.

Please refer to Fig. 12 and Fig. 13 at the same time, it is the fourth embodiment of the combined bicycle provided by the utility model, its main structure is roughly the same as that of the first embodiment shown in Fig. Further details, only different parts of the structure are described in detail in the back: the fourth embodiment is mainly applied as the vehicle frame structure of the lady's bicycle, and the upper tube 17 "and the lower tube 11" in the front frame 10 "are respectively Be welded on the head tube 12 ", and extend backward with a different inclination respectively, a reinforced frame tube 18" that is inherently connected to the upper tube 17 "and the lower tube 11" near the tail end of the two, Seat tube 19 " is to be welded on the top of this bottom bracket tube 31 ", becomes a part of rear vehicle frame 30 ", and with rear fork lower tube 39 " that extends backward from this bottom bracket tube 31 ", and The rear fork upper tube 38 "extending from the top of the seat tube 19" and merged with the rear fork lower tube 39" together form the rear fork tube assembly of the rear frame 30"; and the buckling member 20 "is arranged on the tail end of the upper tube 17", which includes two side splints 42" that are fixed on the tail end of the upper tube 17" and can span the seat tube 19". The two side splints 42" are respectively There is a slot for allowing a quick release lever to pass through; as for the clamping member 33 ″, it is arranged on the seat tube 19 ″. The lugs 25" of the two side splints 42" have a through hole that allows the quick release lever 26" to pass through the lugs 25"; when combining the fastening member 20" and the clamping member 33", The two side splints 42" of the fastening member straddle the seat tube 19", and the lugs 25" of the clamping member 33" are sandwiched between the two side splints 42", so that the quick release lever passes through the two sides Clamping plate 42 " and lug 25 ", and exert force on this two sides clamping plate 42 ", make the person that this lug 25 " is pressed toward the center.

It should also be noted that the utility model can use the brake components that need to be used for the bicycle without a brake line, which not only makes the combined bicycle provided by the utility model have a more concise and beautiful appearance, but also has a more compact and beautiful appearance. When assembling or disassembling operations, the work time required for dismantling or installing wires can be omitted, and the most suitable braking member for the utility model is this kind of foot brake. It has been adopted by various types of commercially available bicycles and can be directly applied to the utility model. In addition, if the utility model adopts a manual brake component that generally needs to use a brake line, the design of a separate brake line can be used to cooperate with the combined frame structure of the utility model, for example, there is a separation of the head and the buttonhole. Type brake line or if the brake line is cut off and hooked with metal sheets at both ends, it is a typical design of separate brake line, which can be directly applied to the utility model; in addition, the utility model can also be used in A fixing seat is arranged on the handlebar, and the brake control handle is locked on the fixing seat. When disassembling the front and rear frames, only the brake control handle and the brake line need to be removed from the fixing seat, and the Inserting it in the gap of the rear vehicle frame is also a feasible design mode of the braking component of the present invention. The various detachable brake wires or brake components that do not require the use of brake wires mentioned above are all feasible embodiments that can be matched with the combined frame structure of the present invention.

In summary, the combined bicycle frame structure provided by the utility model is mainly composed of a front frame 10 and a rear frame 30; wherein the lower tube 11 of the front frame 10 is detachable It is inserted and locked in a combination sleeve 32 that is welded below the bottom bracket 31 of the rear frame 30 and spans the bottom bracket 31 with both ends being open ends, while the front frame 10 is on the lower tube 11 There is also a fastening member 20 on the top, so that it can be interlocked with a clamping member 33 arranged on the rear frame 30. Through the combination of the above two structures, the front and rear frames 10, 30 can be fastened. Assembled into a complete vehicle frame.

The combined bicycle frame structure provided by the utility model has the following advantages when compared with the traditional one-piece bicycle frame structure or folding bicycle:

1) Since each part of the vehicle frame (front wheel, front frame, and rear frame) of the utility model has been disassembled, it has to be stored separately and individually inserted into the gaps, which greatly reduces the storage space of the user, so that multiple parts can be stored All the bicycles are placed in the luggage compartment of a general car in this way, and are transported to the suburbs for multiple family members to share the fun of riding in the wild when traveling.

2) The disassembly operation does not require proficient skills, and it can be assembled and disassembled by ordinary users in a DIY manner. Users can disassemble it anytime and anywhere according to their own needs, so as to facilitate their collection, carrying or putting it in the luggage compartment of the car. ; It can also be assembled anytime and anywhere, so that it can be used as a short-distance transfer (such as between a parking lot and an office) or for leisure riders who go out in the countryside.

3) After dismantling, the volume of packaging materials can be reduced by 60%, which not only reduces the manufacturer's storage, packaging, and container transportation costs, but also makes it less space-consuming for users to store and more convenient to carry.

4) After dismantling, the weight of the bicycle is at least divided into two parts, so that the user can carry it more easily, especially for the heavy electric bicycle, which is more convenient to carry and carry.

5) Easy and fast assembly, which can maintain the shape of the traditional frame without affecting the structural strength of the traditional frame.

6) Dealers do not need to carry out the final assembly process before selling bicycles, which not only reduces their manual operation costs, but also reduces their warehousing and inland distribution costs.

7) The combined bicycle frame structure provided by the utility model is applicable to frame styles of various shapes such as rhombus, Y shape, lady's car, and regardless of the wheel size (12 inches, 16 inches, 20 inches, 24 inches, etc.) inch, 26 inches, 700C, etc.) are applicable, so that the scope of application of the present utility model is not limited.

8) The assembly or disassembly operation is more convenient and fast, and the frame structure has better strength, and is suitable for various frame structures such as diamond frame, Y-shaped shock absorber frame, lady car, etc.

The above detailed description is a specific description of the feasible embodiments of the utility model, but the embodiments are not intended to limit the protection scope of the utility model, and all equivalent implementations or changes that do not depart from the technical spirit of the utility model , should be included in the scope of protection requested by the utility model.

Claims (10)

1. combined bicycle body frame structure for automotive is characterized in that it comprises:

One front vehicle frame, it includes a head tube, one interspersed from bottom to top front fork tube by this head tube, a this front fork tube top and a handlebar interconnect, and be assembled with a front-wheel free to rotate in this front fork tube bottom, this head tube extends back with a gradient and connects a vehicle frame pipe assembly, more is provided with a fastening component on this front vehicle frame; And

One back vehicle frame, it includes one for the five-way pipe that a crank-type stretcher and a driving device are installed, this five-way pipe extension is linked with a back breeches pipe assembly, and on this back breeches pipe assembly, be assembled with one and can be driven by this driving device and the trailing wheel that rotates, this five-way pipe below is fixedly connected with one along its normal direction can pass the assembled casing of fixing in it for the vehicle frame pipe assembly plant of this front vehicle frame, the length of this assembled casing is crossed over this five-way pipe two ends, and two open end respectively is provided with at least one axial crack, can be locked for two quick lock anchor clamps, this back vehicle frame more is provided with a clamping components that must fasten mutually in disassembled mode with the fastening component on this front vehicle frame;

By passing and be fixed in this assembled casing, and this fastening component and this clamping components are fastened mutually, this front vehicle frame can be become a complete bicycle with back chassis mount by the following pipe in this vehicle frame pipe assembly is planted.

2. combined bicycle body frame structure for automotive according to claim 1 is characterized in that described fastening component includes a lug that is fixed on this front vehicle frame, offers one and allows the through hole that a Quick release passes on this lug; Described clamping components then includes and is fixed on this back vehicle frame and corresponding to the both sides clamping plate of this lug, it offers the slotted eye that passes for this Quick release respectively; When making up this fastening component and clamping components, be that the lug of this fastening component is folded between the both sides clamping plate of this clamping components, force on these both sides clamping plate by this Quick release, make to this lug of central packing.

3. combined bicycle body frame structure for automotive according to claim 1 is characterized in that described clamping components includes a lug that is fixed on this back vehicle frame, and it offers one and allows the through hole that a Quick release passes; And including one, described fastening component is fixed on this front vehicle frame and corresponding to the both sides clamping plate of this lug, it offers one respectively and allows the slotted eye that this Quick release passes; When making up this fastening component and clamping components, be that the lug of this clamping components is folded between the both sides clamping plate of this fastening component, force on these both sides clamping plate by this Quick release, make to this lug of central packing.

4. combined bicycle body frame structure for automotive according to claim 1, the vehicle frame pipe assembly that it is characterized in that described front vehicle frame includes a pipe once that extends back and connect from this head tube, and the pipe of going up that is linked between this time Guan Yuyi hanging type seat pipe, this time pipe can be passed by plant and be fixed in this assembled casing, and this hanging type seat Guan Zeke fixes a seat cushion for planting.

5. combined bicycle body frame structure for automotive according to claim 4, it is characterized in that being articulated with a Shock absorber on the described following pipe, the one free end is provided with this fastening component, and this clamping components then is set on this back breeches pipe assembly, and what make must fasten mutually with this Shock absorber; And the rotating shaft of this five-way Guan Yuyi Shock absorber constitutes a five-way shock-absorbing rotating shaft jointly, makes this forward and backward vehicle frame form the state that can be pivoted relative to each other.

6. combined bicycle body frame structure for automotive according to claim 5 is characterized in that described assembled casing is the Shock absorber rotating shaft below that is fixedly connected in this five-way shock-absorbing rotating shaft, and this back breeches pipe assembly is then direct and this five-way pipe is affixed.

7. combined bicycle body frame structure for automotive according to claim 4, it is characterized in that described assembled casing offers at least one axial crack respectively in two open end, the elasticity trend that two open end is all had inwardly tightened, when it is interted by this assembled casing at this time pipe, utilize two quick lock anchor clamps to tighten two open end respectively, two open end is managed to this time of internal strain packing in this assembled casing.

8. combined bicycle body frame structure for automotive according to claim 4, it is characterized in that being provided with a resilient pin in the described following pipe, locate pin-and-hole and offer one of correspondence position on this assembled casing, it is after this time pipe is passed this assembled casing by plant, and this resilient pin can be embedded in person in this dowel hole.

9. combined bicycle body frame structure for automotive according to claim 4, it is characterized in that described pipe down more is provided with the limit commentaries on classics member of an indent groove, and this assembled casing more is provided with the respective grooves of this indent groove of cooperation, and both are chimeric mutually, rotates with respect to this assembled casing to limit this time pipe.

10. combined bicycle body frame structure for automotive according to claim 4, it is characterized in that described pipe down more is provided with the limit commentaries on classics member of an indent groove, and this assembled casing more is provided with this indent groove of cooperation and partly stretch into the interior navigation button of this assembled casing, both are chimeric mutually, use and limit this time pipe with respect to this assembled casing rotation.

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