A telescopic frame structure and a two-wheeled vehicle

Abstract

This utility model discloses a telescopic frame structure and a two-wheeled vehicle, including an upper frame body and a lower frame body arranged vertically and telescopically connected. The upper frame body includes an upper crossbeam for connecting to the front wheel of the handlebars, extending along a first direction. The lower frame body includes a lower crossbeam, a lower support member, and a locking assembly for locking or releasing the upper and lower crossbeams. The lower crossbeam extends along the first direction. The upper and lower crossbeams are telescopically connected in a surface-fitting manner along the first direction. The upper end of the lower support member is connected to the lower crossbeam, and the lower end of the lower support member extends away from the upper crossbeam. This telescopic frame structure has good stability, is easy and quick to operate, and can be telescopically extended manually or electrically. It will not damage the vehicle's paint finish during the extension and retraction process due to friction and compression. Different types and sizes of vehicle models using this telescopic frame structure can achieve telescopic functionality. It is compact, easy to package and transport, and reduces transportation costs.

Description

Technical Field

[0001] This utility model relates to the field of two-wheeled vehicle technology, particularly to the field of electric vehicle and bicycle technology, and especially to a telescopic frame structure and a two-wheeled vehicle. Background Technology

[0002] Currently, for various two-wheeled vehicles such as bicycles and electric bicycles, in order to reduce packaging volume and save transportation costs, the front wheel and mudguards are generally removed, along with accessories such as the front brake and headlights. However, this packaging method not only results in high transportation costs, but also makes the installation process cumbersome for users, easily leading to various after-sales problems.

[0003] Retractable bicycles and electric bikes can be adjusted in size to accommodate users of different body types, while also reducing their size for easier transport and packaging.

[0004] However, existing telescopic structures for telescopic bicycles or electric vehicles have two main problems:

[0005] Problem 1: The telescopic structure is prone to deformation, which can lead to failure of the telescopic function or difficulty in locking the telescopic structure. This can cause the bicycle to wobble when riding, failing to meet the relevant technical standards for bicycles and electric vehicles.

[0006] Question 2: Existing telescopic structures usually use a large tube enclosing a small tube. When locking or telescopicating, the large and small tubes rub against each other, which scratches a large area of ​​paint on the front of the two-wheeled vehicle, greatly affecting its appearance.

[0007] In addition, the existing retractable bicycles or retractable electric vehicles have a narrow range of applications.

[0008] For example, Chinese patent document CN110316298B discloses a retractable electric vehicle, including a vehicle body composed of a front body and a rear body. The front body consists of a handlebar, a front fender, a front frame, and a front wheel. The rear body consists of a rear frame, a rear wheel, and a seat. A telescopic fixing device for adjusting and fixing the relative position between the front and rear frames is connected. The vehicle also includes a pedal, which consists of left and right pedal supports and a sliding plate slidably connected between the left and right pedal supports. The sliding plate is a bendable plate-like structure. One end of the pedal is internally connected to the front fender, and the other end is slidably connected to the upper part of the rear frame. The front fender and pedal supports both have sliding grooves distributed along the length of the vehicle body. Sliding wheels are connected to the left and right ends of the sliding plate, driving the sliding plate to slide along the sliding grooves inside the pedal supports and the front fender. This technical solution, through the sliding telescopic design between the front and rear frames, also suffers from the aforementioned problems. Utility Model Content

[0009] The purpose of this invention is to solve the problems of unstable telescopic structure, easy shaking, and damage to the surface of two-wheeled vehicles during telescopic operation in the existing technology. The invention provides a telescopic frame structure and two-wheeled vehicle with reasonable and stable telescopic structure, convenient operation, and no damage to the surface appearance of two-wheeled vehicles during telescopic operation, which has a wide range of applications.

[0010] The technical solution adopted by this utility model to achieve its invention purpose is: a telescopic frame structure, including an upper frame body and a lower frame body that are arranged vertically and telescopically connected;

[0011] The main body of the structure includes an upper crossbeam at the front end for connecting with the front wheel of the handlebars, and the upper crossbeam extends along a first direction;

[0012] The main body of the structure includes a lower crossbeam, a lower support member, and a locking assembly for locking or releasing the upper and lower crossbeams; the lower crossbeam extends along a first direction; wherein,

[0013] The upper and lower crossbeams are connected in a surface-fitting telescopic manner along the first direction;

[0014] The upper end of the lower support member is connected to the lower crossbeam, and the lower end of the lower support member extends away from the upper crossbeam for connection with the rear wheel pedal structure.

[0015] This telescopic frame structure features a completely redesigned frame, divided into upper and lower sections. The upper section is positioned along the first direction, i.e., the front-to-back direction of the two wheels. The lower section includes a lower crossbeam connected to a lower support member, also positioned along the first direction. The lower and upper crossbeams are connected in a surface-fitting telescopic connection along the first direction. This surface-fitting telescopic connection ensures stability during telescopic adjustment, preventing wobbling. Furthermore, since the adjustment is performed on the opposing surfaces of the upper and lower crossbeams, wear will not affect the frame's appearance. This telescopic frame structure is also convenient and quick to operate, with excellent locking performance, significantly improving the overall stability of the frame.

[0016] Preferably, the upper crossbeam includes a first surface and a second surface arranged opposite to each other; the lower crossbeam has an upper beam surface, and the upper beam surface of the lower crossbeam and the second surface of the upper crossbeam form a surface-fitting telescopic connection. Through the surface-fitting telescopic connection between the upper and lower crossbeams, the overall telescopic design of the vehicle frame structure in the first direction is realized. Due to the surface-fitting telescopic connection, the contact surface for telescopic adjustment is large, and a large static friction force is generated between the surfaces during use, ensuring the overall stability of the vehicle frame structure.

[0017] Preferably, the first surface is used to mount the seat; the lower crossbeam is disposed below the second surface, and the lower crossbeam and the upper crossbeam form a surface-fitting telescopic connection; the second surface and / or the surface of the lower crossbeam facing the upper crossbeam are provided with anti-slip textures. By providing a first surface and a second surface on the upper crossbeam, with the first surface used to mount the seat and the second surface used to achieve a surface-fitting telescopic connection with the lower crossbeam, the stability of telescopic adjustment and stability during use are effectively improved. To further increase the stability between the upper and lower crossbeams, anti-slip textures are provided on the second surface and / or the surface of the lower crossbeam.

[0018] Preferably, the upper and lower main bodies of the frame are connected by a sliding telescopic connection; the upper crossbeam is provided with a slide rail extending along the first direction; the lower crossbeam is provided with a sliding member, which is slidably connected to the slide rail. As a preferred embodiment, the upper and lower main bodies of the frame can be connected by a sliding telescopic connection, specifically using a combination of slide rail and sliding member. Of course, other sliding methods can also be used, depending on the structural requirements of the vehicle frame.

[0019] As another preferred embodiment, the upper and lower main frames are connected by a movable, adjustable, and telescopic connection; the upper crossbeam has several upper crossbeam adjustment holes along the first direction; and the lower crossbeam has several lower crossbeam adjustment holes along the first direction. Alternatively, the upper and lower main frames are connected by a movable, adjustable, and telescopic connection to achieve the telescopic adjustment of the entire frame structure. The locking assembly locks the adjusted upper and lower crossbeam adjustment holes inside. By setting several upper crossbeam adjustment holes on the upper crossbeam and lower crossbeam adjustment holes on the lower crossbeam, and selecting the corresponding lower crossbeam connection holes on the lower crossbeam to match the upper crossbeam connection holes on the upper crossbeam according to the telescopic needs, and locking them together with the locking assembly, the overall telescopic adjustment of the frame structure can be achieved. The structure is simple and the operation is convenient.

[0020] Preferably, the locking assembly adopts a manual quick-release locking structure; the manual quick-release locking structure includes an eccentric quick-release handle and a quick-release screw.

[0021] Preferably, the sliding member is provided with a threaded hole, and the lower crossbeam is provided with a through hole corresponding to the sliding member. One end of the quick-release screw passes through the through hole and is threadedly connected to the threaded hole, and the other end of the quick-release screw is eccentrically connected to the eccentric quick-release handle to achieve the locking or unlocking state of the upper and lower main bodies.

[0022] Preferably, the locking assembly further includes an anti-loosening screw.

[0023] As another preferred embodiment, the locking assembly is a manual locking assembly, which includes an adjusting locking bolt. The upper and lower crossbeam adjusting holes are threaded holes, allowing the adjusting locking bolt to be installed and fixed from the lower crossbeam adjusting hole on the lower crossbeam tube to the upper crossbeam adjusting hole on the upper crossbeam, thereby achieving the purpose of locking and fixing.

[0024] Preferably, the system also includes an electrically operated telescopic mechanism, which employs a gear-driven sliding telescopic structure. The telescopic frame structure can also utilize an electrically operated telescopic mechanism to achieve automatic telescopic extension and retraction.

[0025] Preferably, the gear-driven sliding telescopic structure includes a drive motor, a drive gear, and a rack.

[0026] Preferably, the drive motor is mounted on the lower main body of the structure, and a drive gear is connected to the drive end of the drive motor. The rack is mounted on the upper crossbeam and extends along the first direction, and the drive gear meshes with the rack. By rotating the drive motor, the drive gear is driven to rotate, which in turn drives the rack to move relative to the upper crossbeam along the first direction, thereby achieving telescopic adjustment of the relative position between the upper and lower crossbeams.

[0027] Preferably, the telescopic frame structure further includes a limiting structure; the limiting structure includes a positioning groove on the upper crossbeam and a positioning protrusion on the lower crossbeam. By setting the limiting structure, the stability of the adjustment process can be ensured during telescopic adjustment.

[0028] Preferably, the positioning groove extends along a first direction and is disposed on the second surface of the upper crossbeam, and the width of the positioning groove gradually increases along the direction from the upper crossbeam to the lower crossbeam.

[0029] Preferably, the positioning protrusion extends along the first direction and is disposed on the upper beam surface of the lower crossbeam. The shape of the positioning protrusion matches the shape of the positioning groove, and the positioning protrusion and the positioning groove are slidably connected along the first direction.

[0030] Preferably, the upper crossbeam is provided with a battery compartment and a control box compartment, the battery compartment and the control box compartment are distributed along the first direction, a battery power base is provided between the battery compartment and the control box compartment, and connectors extending into the battery compartment and the control box compartment are provided on both sides of the battery power base, respectively. The end of the battery compartment away from the control box compartment extends to the end of the upper crossbeam tube and forms an opening.

[0031] Preferably, the main body of the structure also includes a rear fork, one end of which is rotatably connected to the end of the lower support member away from the lower crossbeam. The lower support member is provided with an upper mounting seat, and the rear fork is provided with a lower mounting seat. The upper mounting seat and the lower mounting seat are used to mount the shock absorber. The front shock absorber can be installed through the upper mounting seat and the lower mounting seat.

[0032] As another preferred embodiment, the main body of the structure also includes a rear fork, one end of which is rotatably connected to the end of the lower support member away from the lower crossbeam. The rear fork includes a fork plate away from the lower support member, and a lower mounting seat is provided on the fork plate. An upper mounting seat is provided on the lower crossbeam. The upper mounting seat and the lower mounting seat are used to mount shock absorbers. Alternatively, two rear shock absorbers can be provided on the rear fork, or both rear and front shock absorbers can be installed simultaneously.

[0033] Preferably, the upper crossbeam is provided with a wiring groove extending along a first direction and a first wiring hole communicating with the wiring groove; the lower support is provided with a second wiring hole.

[0034] Preferably, a lamp holder plate extending toward the lower beam is also fixed to the upper crossbeam.

[0035] Preferably, the upper crossbeam is a single-layer or double-layer square or round tubular component; the lower crossbeam and the upper crossbeam are connected by an interlocking or fitting movable connection. The structure of the upper and lower crossbeams is not specifically limited; they can be tubular or plate components. The upper and lower crossbeams can be connected by an interlocking or fitting movable connection.

[0036] The technical solution adopted by this utility model to achieve its second inventive objective is: a telescopic two-wheeled vehicle, including the aforementioned telescopic frame structure.

[0037] The beneficial effects of this utility model are as follows: Compared with the prior art, the telescopic vehicle frame provided by this utility model, by setting the upper crossbeam and the lower crossbeam to be connected in a telescopic manner along the front and rear directions of the vehicle body, allows the upper body and the lower body of the frame to move relative to each other in the front and rear directions, thereby realizing the telescopic movement of the vehicle body.

[0038] When the locking assembly releases the upper and lower crossbeams, the upper and lower crossbeams can move relative to each other. When the locking assembly locks the upper and lower crossbeams, the upper and lower crossbeams are relatively fixed, the body length is adjusted, and the upper body and lower body of the frame are fixed as one unit.

[0039] Furthermore, the upper and lower crossbeams that generate relative telescopic movement in this invention are distributed vertically. When the upper and lower crossbeams move relative to each other, the second surface of the upper crossbeam rubs against the upper surface of the lower crossbeam. Even if scratches or other problems occur on the two surfaces, they are not easily noticed and are unlikely to affect the appearance of the two-wheeled vehicle.

[0040] On the other hand, since the upper and lower crossbeams of this invention together form the laterally extending main structure of the telescopic frame, when the frame is under load, the upper crossbeam is subjected to downward pressure, and the upper and lower crossbeams are relatively compressed in the vertical direction. Under the action of the compressive force, the static friction between the upper and lower crossbeams increases, making it difficult for them to slide relative to each other, thus ensuring the overall stability of the telescopic frame. Furthermore, by setting a positioning structure between the upper and lower crossbeams, the overall stability of the frame is further improved.

[0041] In addition, the telescopic frame structure provided by this utility model is simple and reasonable, and one structure can be applied to different types of vehicle models, such as bicycles and electric bicycles, with a wide range of applications. Attached Figure Description

[0042] Figure 1 This is an exploded view of the telescopic frame structure of this utility model.

[0043] Figure 2 This is a diagram showing a locking state of the telescopic frame structure of this utility model.

[0044] Figure 3 This is a schematic diagram illustrating the telescopic principle of the telescopic frame structure of this utility model.

[0045] Figure 4 This is an exploded view of the telescopic frame structure in Example 2.

[0046] Figure 5 This is a locking state diagram of the telescopic frame structure in Embodiment 2.

[0047] Figure 6 This is a rear view of the telescopic frame structure in Embodiment 2.

[0048] Figure 7 This is a three-dimensional structural diagram of the telescopic frame structure in Example 2.

[0049] Figure 8 This is a three-dimensional structural diagram of the telescopic frame structure in Example 2 from another angle.

[0050] Figure 9 This is a cross-sectional schematic diagram of the telescopic frame structure in Embodiment 7.

[0051] Figure 10 This is a schematic diagram of the structure of the intelligent control interface in Example 7.

[0052] Figure 11a , 11b 11c and 11d are cross-sectional views of the upper and lower crossbeams with different structures in this utility model.

[0053] Figure 12 This is a schematic diagram of a telescopic frame structure in Example 8.

[0054] Figure 13 This is a three-dimensional structural diagram of the telescopic frame architecture in Example 8.

[0055] Figure 14 This is a front view schematic diagram of a telescopic electric vehicle in this utility model.

[0056] Figure 15 This is a schematic diagram of the retractable electric vehicle in its retracted and folded state according to this utility model.

[0057] In the picture: 10, telescopic frame, 20, seat, 30, handlebars, 31, stem, 40, front fork, 50, front wheel, 60, rear wheel, 70, wheel chain, 71, pedals, 80, battery, 90, shock absorber, 100, telescopic electric vehicle.

[0058] 101. Drive motor; 102. Drive gear; 103. Rack;

[0059] 104. Intelligent control interface; 1041. Forward key; 1042. Backward key; 1043. Lock key;

[0060] 11. Main structure;

[0061] 111. Upper crossbeam; 111a. First surface; 111b. Second surface; 111c. Battery compartment; 111d. Control box compartment; 1111. Slide rail; 1112. Positioning groove; 1113. Wiring groove; 1114. Bend; 1115. Lamp holder plate; 1116. Battery power base; 1117. Support tube; 1118. Bridge plate; 1119. Upper crossbeam adjustment hole;

[0062] 112. Head tube;

[0063] 12. Main body of the frame, 121. Lower crossbeam, 121a. Upper beam surface, 1211. Sliding component, 1212. Positioning protrusion, 1213. Anti-slip texture, 1214. Adjustment hole of lower crossbeam;

[0064] 122. Lower support component; 1221. Second wiring hole; 1222. Upper mounting base;

[0065] 123. Locking assembly; 1231. Eccentric quick-release handle; 1232. Quick-release screw; 1233. Anti-loosening screw; 1234. Adjusting locking bolt;

[0066] 124. Rear fork; 1241. Lower mounting bracket; 1242. Rear fork plate;

[0067] 125. Connecting shaft; 126. Bottom joint. Detailed Implementation

[0068] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0069] Example 1:

[0070] In Figure 1, Figure 2 , Figure 3 In the illustrated embodiment, a telescopic frame structure 10 constitutes the main body of a two-wheeled vehicle. Two-wheeled vehicles primarily refer to electric or non-electric vehicles with two wheels, such as bicycles, electric vehicles, or motorcycles. In this embodiment, the telescopic frame structure 10 is used to constitute the main body of a non-electric bicycle.

[0071] The telescopic frame 10 can be made of aluminum alloy or steel, or a combination of the two materials, or other materials suitable for making the frame.

[0072] In the vertical direction, the telescopic frame structure 10 mainly includes an upper frame 11 and a lower frame 12 that are arranged vertically and can be adjusted in a relatively telescopic manner and locked and fixedly connected as a whole.

[0073] The main body 11 of the structure includes an upper crossbeam 111, which extends along a first direction X (i.e., the front-to-back direction). The front end of the upper crossbeam 111 is used to connect with the handlebars and the front wheel.

[0074] The upper crossbeam 111 includes a first surface 111a and a second surface 111b arranged opposite to each other. Specifically, the first surface 111a is the upper surface and is used to set the seat cushion, and the second surface 111b is the lower surface and is used to connect with the lower main body 12 of the structure below.

[0075] The main body 12 of the structure includes a lower crossbeam 121, a lower support member 122, and a locking assembly 123.

[0076] The lower crossbeam 121 is disposed on one side of the upper crossbeam 111 and faces the second surface 111b. The lower crossbeam 121 extends along the first direction X, and the upper crossbeam 111 and the lower crossbeam 121 are slidably connected along the first direction X.

[0077] Specifically, the lower crossbeam 121 is located below the upper crossbeam 111, and the two are arranged parallel to each other. An upper beam surface 121a is provided on the side of the lower crossbeam 121 facing the upper crossbeam. The upper crossbeam 111 and the lower crossbeam 121 are arranged in a surface-fitting telescopic connection structure along a first direction; that is, the second surface 111b on the upper crossbeam and the upper beam surface 121a on the lower crossbeam fit together and telescopically expand and contract, realizing a sliding connection in the first direction X, thereby extending or shortening the telescopic frame structure, and thus achieving the extension or shortening of the entire vehicle.

[0078] The locking assembly 123 is connected between the upper crossbeam 111 and the lower crossbeam 121, and is used to lock or release the upper crossbeam 111 and the lower crossbeam 121. The locking assembly 123 includes a manual locking assembly or an automatic locking assembly. In this embodiment, the locking assembly 123 is a manual locking assembly.

[0079] The top end of the lower support member 122 is connected to the lower crossbeam 121, and the bottom end of the lower support member 122 extends away from the upper crossbeam 111 for connection with the rear wheel, pedals, and other structures. Specifically, the lower support member 122 extends rearward vertically or at a certain angle to the vertical. The bottom end of the lower support member 122 is rotatably connected to the rear fork 124 via a connecting shaft 125. A bottom bracket 126 for mounting components such as pedals is also provided at the bottom end of the lower support member 122.

[0080] The telescopic frame structure 10 achieves vehicle body extension and retraction by configuring the upper crossbeam 111 and lower crossbeam 121 to slide together along the front-rear direction of the vehicle body, allowing the upper main body 11 and the lower main body 12 to move relative to each other in the front-rear direction. When the locking assembly 123 releases the upper crossbeam 111 and lower crossbeam 121, they can slide relative to each other. When the locking assembly 123 locks the upper crossbeam 111 and lower crossbeam 121, they are relatively fixed, the vehicle body length is adjusted, and the upper main body 11 and the lower main body 12 are fixed together.

[0081] Furthermore, the upper crossbeam 111 and the lower crossbeam 121 that generate relative sliding in this utility model are distributed vertically. When the upper crossbeam 111 and the lower crossbeam 121 generate relative sliding, the second surface 111b (i.e. the lower surface) of the upper crossbeam 111 rubs against the upper beam surface 121a of the lower crossbeam 121. Even if scratches or other problems occur on the two surfaces, they are not easily detected and are unlikely to affect the appearance of the two-wheeled vehicle.

[0082] On the other hand, since the upper crossbeam 111 and the lower crossbeam 121 of this utility model together form the main body of the laterally extended telescopic frame structure 10, when the frame is under load, the upper crossbeam 111 is subjected to downward pressure, and the upper crossbeam 111 and the lower crossbeam 121 are relatively squeezed in the vertical direction. Under the action of the squeezing force, the static friction between the upper crossbeam 111 and the lower crossbeam 121 increases, making it difficult for the upper crossbeam 111 and the lower crossbeam 121 to slide relative to each other, thus ensuring the overall stability of the telescopic frame structure 10.

[0083] In addition, the telescopic frame structure 10 provided by this utility model has a simple and reasonable structure, and one structure can be applied to different types of vehicle models, such as bicycles and electric bicycles, with a wide range of applications.

[0084] Example 2:

[0085] exist Figure 4 , Figure 5 , Figure 7 , Figure 8 In the illustrated embodiment, a telescopic frame structure 10 is used to form the main body of an electric bicycle. Its technical solution is basically the same as that of Embodiment 1, except that:

[0086] The upper crossbeam 111 is a square or round tube with a single or double layer structure; the lower crossbeam 121 and the upper crossbeam 111 are connected by a mutual interlocking movable connection.

[0087] The cross-sections of the upper crossbeam 111 and the lower crossbeam 121 are both rectangular.

[0088] The upper crossbeam 111 is provided with a slide rail 1111 extending along the first direction X. The slide rail 1111 is located on the side of the upper crossbeam 111 near the lower crossbeam 121. The side of the lower crossbeam 121 facing the upper crossbeam 111 is provided with a sliding member 1211, and the sliding member 1211 is slidably connected to the slide rail 1111.

[0089] In this embodiment, the relative sliding of the upper crossbeam 111 and the lower crossbeam 121 is achieved by the sliding of the slider 1211 in the slide rail 1111. In other embodiments, the slide rail 1111 may also be provided on the upper surface of the lower crossbeam 121, and the slider 1211 may be provided to protrude from the second surface 111b of the upper crossbeam 111.

[0090] like Figure 6 , Figure 7 , Figure 8As shown, specifically in this embodiment, there are two slides 1111, which are arranged in parallel and symmetrically. Correspondingly, two sliding members 1211 are respectively arranged at the front and rear ends of each slide 1111, for a total of four sliding members 1211. This allows the sliding members 1211 to slide stably within the corresponding slide 1111, ensuring a stable connection between the upper crossbeam 111 and the lower crossbeam 121.

[0091] In other embodiments, the number of slides 1111 can also be other numbers, such as one or three, and each slide 1111 can also be provided with other numbers of sliding members 1211. This utility model does not make any specific limitations.

[0092] Specifically, in this embodiment, such as Figure 6 As shown, the slide 1111 is a T-shaped groove. In other embodiments, the shape of the slide 1111 can also be a dovetail groove or the like. The shape of the sliding member 1211 is adapted to the shape of the slide 1111.

[0093] This utility model does not specifically limit the shape and connection method of the upper crossbeam 111 and the lower crossbeam 121, as long as relative sliding can be achieved. For example, see Figure 11a , 11b 11c, 11d, Figure 11a , 11b 11c and 11d are cross-sectional views illustrating some embodiments of the upper and lower crossbeams.

[0094] like Figure 11a In the embodiment shown, the upper crossbeam is a square tube with a double-layer structure, and the slide 1111 is a T-shaped groove. In other embodiments, the shape of the slide 1111 can also be a dovetail groove or the like. The shape of the sliding member 1211 is adapted to the shape of the slide 1111.

[0095] like Figure 11b In the embodiment shown, the upper crossbeam 111 has a circular cross-section, and the upper crossbeam 111 and the lower crossbeam 121 are interlocked and slidably connected by a male-female slide rail 1111.

[0096] like Figure 11c In the illustrated embodiment, the upper crossbeam is a single-layer square tubular component. A T-shaped slide rail 1111 is formed at the bottom of the upper crossbeam 111, and the lower crossbeam 121 is T-shaped overall, slidably connected within the T-shaped slide rail 1111. The upper and lower crossbeams are connected by lateral or lower adjustable locking connections. This is primarily suitable for structures that require manual adjustment using locking bolts.

[0097] like Figure 11dIn the embodiment shown, the upper crossbeam is a square tube with a double-layer structure, and only one slide rail 1111 is provided. This structure can narrow the width of the upper crossbeam 111 and the lower crossbeam 121, and is suitable for bicycles or light electric vehicles.

[0098] Example 3:

[0099] exist Figures 1 to 8 In the embodiment shown, a telescopic frame structure is provided. The technical solution in this embodiment is basically the same as that in Embodiments 1 and 2, except that the locking component includes a manual locking component, which adopts a manual quick-release locking structure.

[0100] The locking assembly 123 includes a quick-release assembly, which includes an eccentric quick-release handle 1231 and a quick-release screw 1232.

[0101] The sliding member 1211 is provided with a threaded hole, and the lower crossbeam 121 is provided with a through hole corresponding to the sliding member 1211. One end of the quick-release screw 1232 passes through the through hole and is threadedly connected to the threaded hole, and the other end of the quick-release screw 1232 is eccentrically rotatably connected to the eccentric quick-release handle 1231.

[0102] Specifically, the eccentric quick-release handle 1231 is located on the side of the lower crossbeam 121 opposite to the upper crossbeam 111, and the through hole of the lower crossbeam 121 and the threaded hole in the sliding member 1211 both extend in the vertical direction.

[0103] When the eccentric quick-release handle 1231 rotates eccentrically relative to the quick-release screw 1232, the arc surface of the eccentric quick-release handle 1231 gradually approaches and presses against the lower crossbeam 121, causing the lower crossbeam 121 to gradually approach the sliding member 1211, so that the sliding member 1211 and the lower crossbeam 121 clamp the upper crossbeam 111 from the upper and lower sides, thereby locking the upper crossbeam 111 and the lower crossbeam 121.

[0104] When the eccentric quick-release handle 1231 is eccentrically reversed relative to the quick-release screw 1232, the arc surface of the eccentric quick-release handle 1231 gradually moves away from the lower crossbeam 121, causing the lower crossbeam 121 to gradually move away from the slider 1211, causing the slider 1211 and the lower crossbeam 121 to separate from the upper crossbeam 111, thereby unlocking the upper crossbeam 111 and the lower crossbeam 121.

[0105] In this embodiment, a quick-release assembly is used to achieve rapid locking and unlocking of the upper crossbeam 111 and the lower crossbeam 121. In other embodiments, the quick-release assembly can also be arranged laterally, using a lateral force to lock the upper crossbeam 111 and the lower crossbeam 121 together, such as... Figure 7 As shown.

[0106] The locking assembly 123 also includes an anti-loosening screw 1233.

[0107] The lower crossbeam 121 is provided with at least one threaded through hole arranged along the first direction X, and the upper crossbeam 111 is provided with at least one positioning hole arranged along the first direction X. The anti-loosening screw 1233 is threadedly connected to the threaded through hole and passes through the lower crossbeam 121 and is inserted into the positioning hole.

[0108] The anti-detachment screw 1233 is used to position the upper crossbeam 111 and the lower crossbeam 121 in the first direction X. After the vehicle body length adjustment is completed, the upper crossbeam 111 and the lower crossbeam 121 can be further fixed by the anti-detachment screw 1233. Even if the user forgets to lock the quick-release assembly or the quick-release assembly fails, it can prevent the upper crossbeam 111 and the lower crossbeam 121 from moving relative to each other.

[0109] In this embodiment, the locking assembly 123 achieves double protection by simultaneously providing a quick-release assembly and an anti-loosening screw 1233. In other embodiments, the locking assembly 123 may also include only the anti-loosening screw 1233 and corresponding threaded through holes and positioning holes to replace the quick-release assembly.

[0110] Example 4:

[0111] exist Figure 6 , Figure 7 , Figure 8 The technical solution shown in the embodiment is basically the same as that in the previous embodiments, except that:

[0112] The telescopic frame structure 10 also includes a limiting structure; the limiting structure includes a positioning groove 1112 provided on the upper crossbeam 111 and a positioning protrusion 1212 provided on the surface of the lower crossbeam 121.

[0113] The upper crossbeam 111 has a positioning groove 1112 extending along the first direction X on its second surface 111b. The width of the positioning groove 1112 gradually increases along the direction from the upper crossbeam 111 to the lower crossbeam 121 (i.e., from top to bottom). The lower crossbeam 121 has a positioning protrusion 1212 protruding on the side facing the upper crossbeam 111. The shape of the positioning protrusion 1212 is adapted to the shape of the positioning groove 1112, and the positioning protrusion 1212 and the positioning groove 1112 are slidably connected along the first direction X.

[0114] Specifically, in this embodiment, the positioning groove 1112 is disposed between the two slide rails 1111, and the cross-sections of both the positioning groove 1112 and the positioning protrusion 1212 are V-shaped. When the upper crossbeam 111 and the lower crossbeam 121 are assembled, the positioning of the upper crossbeam 111 and the lower crossbeam 121 is achieved by the cooperation of the positioning protrusion 1212 and the positioning groove 1112. When the upper crossbeam 111 and the lower crossbeam 121 are locked, the force between them can be dispersed through the mating surface of the positioning protrusion 1212 and the positioning groove 1112, ensuring the strength of the upper crossbeam 111 and the lower crossbeam 121.

[0115] In other embodiments, multiple positioning grooves 1112 and positioning protrusions 1212 may be provided, and their shapes are not limited by this utility model. Positioning grooves 1112 and positioning protrusions 1212 may also be provided on the lower crossbeam 121 and the upper crossbeam 111 respectively.

[0116] Furthermore, such as Figure 7 As shown, the lower crossbeam 121 has anti-slip texture 1213 on its surface facing the upper crossbeam 111. Specifically, the anti-slip texture 1213 can be multiple grooves or ridges arranged along the first direction X to further increase the friction between the upper crossbeam 111 and the lower crossbeam 121 after locking. In other embodiments, the anti-slip texture 1213 can also be provided on the second surface 111b.

[0117] Example 5:

[0118] exist Figure 6 , Figure 7 , Figure 8 In the illustrated embodiment, the technical solution further includes:

[0119] The upper crossbeam 111 is provided with a wiring groove 1113 extending along the first direction X and a first wiring hole (not shown) communicating with the wiring groove 1113.

[0120] The lower support member 122 has a hollow structure and is provided with a second wiring hole 1221. Specifically, in this embodiment, there are two wiring grooves 1113, which are respectively arranged on both sides of the two slides 1111 and arranged side by side with the slides 1111 for easy fabrication.

[0121] The first cable routing hole is located at the bottom or side of the upper crossbeam 111 and communicates with the cable routing groove 1113. The second cable routing hole 1221 is located at the top of the lower support member 122. Bicycles or electric vehicles typically have cables such as brake cables and control cables. The structure of this embodiment allows the cables to enter the cable routing groove 1113 from the front of the vehicle and extend within it. Then, the cables exit the upper crossbeam 111 through the first cable routing hole and enter the hollow lower support member 122 through the second cable routing hole 1221, hiding most of the cables within the vehicle frame, protecting the cables while improving the aesthetics of the two-wheeled vehicle. In other embodiments, the number and shape of the cable routing grooves 1113 can also be different, and this utility model does not impose specific limitations.

[0122] Example 6:

[0123] exist Figures 1 to 8 The technical solution shown in the embodiment is basically the same as that in embodiment 2, except that:

[0124] A lamp holder plate 1115 is fixed on the second surface 111b of the upper crossbeam 111. The lamp holder plate 1115 extends in a direction away from the first surface 111a and is disposed at the end of the upper crossbeam 111.

[0125] Specifically, the lamp holder plate 1115 is fixed to the bottom of the tail end of the upper crossbeam 111 on one side and extends after bending downwards at 90°. The lamp holder plate 1115 is used to install the taillight on one hand and to limit the lower crossbeam 121 on the other hand, preventing the lower crossbeam 121 from disengaging from the tail end of the upper crossbeam 111 into the slide rail 1111.

[0126] like Figure 7 , Figure 8 As shown, the upper crossbeam 111 is provided with a battery compartment 111c and a control box compartment 111d. The battery compartment 111c and the control box compartment 111d are distributed along the first direction X.

[0127] A battery power base 1116 is provided between the battery compartment 111c and the control box compartment 111d. The battery power base 1116 has connectors on both sides that extend into the battery compartment 111c and the control box compartment 111d respectively. The end of the battery compartment 111c facing away from the control box compartment 111d extends to the end of the upper crossbeam 111 tube and forms an opening.

[0128] Specifically, the upper crossbeam 111 is a hollow structure, divided into front and rear compartments by the battery power-on base 1116. The front compartment is the control box compartment 111d, used to install the control box; the rear compartment is the battery compartment 111c, used to install the battery 80. The battery 80 can be inserted into the battery compartment 111c through the opening at the rear of the upper crossbeam 111. The battery and the control box are electrically connected through connectors on both sides of the battery power-on base 1116. The battery is fixedly connected to the upper crossbeam 111 by a locking mechanism at its rear.

[0129] In the foregoing embodiments, the relative movement between the upper crossbeam 111 and the lower crossbeam 121 can be accomplished manually. In other embodiments, the relative movement between the upper crossbeam 111 and the lower crossbeam 121 can also be achieved electrically.

[0130] Example 7:

[0131] exist Figure 9 In the embodiment shown, the technical solution is basically the same as that in embodiment 2, except that in this embodiment, the telescopic frame structure 10 adopts an electric telescopic mechanism to achieve telescopic adjustment.

[0132] The electric telescopic mechanism adopts a gear-driven sliding telescopic structure, which includes a drive motor 101, a drive gear 102, and a rack 103.

[0133] The drive motor 101 is mounted on the lower crossbeam 121 or on the lower support member 122. The drive end of the drive motor 101 is connected to a drive gear 102. The rack 103 is mounted below the upper crossbeam 111 and extends along the first direction X. The drive gear 102 meshes with the rack 103.

[0134] In this embodiment, the drive motor 101 can drive the drive gear 102 to rotate, and drive the rack 103 to move along the first direction X, thereby realizing the relative movement between the upper crossbeam 111 and the lower crossbeam 121.

[0135] like Figure 10 As shown, in this embodiment, the telescopic frame structure 10 can also be controlled via the intelligent control interface 104.

[0136] The intelligent control interface 104 includes a forward button 1041, a backward button 1042, and a lock button 1043, which are used to control the forward and reverse rotation of the drive motor 101 to control the extension and retraction of the vehicle body, respectively. The lock button 1043 is used to lock the forward button 1041 and the backward button 1042. This intelligent control interface 104 can be installed on the telescopic frame structure 10 or as an APP operation interface to control the vehicle body via Bluetooth or other means.

[0137] See Figures 1 to 8 In some embodiments, the main body 12 under the architecture also includes a rear fork 124.

[0138] One end of the rear fork 124 is rotatably connected to the end of the lower support member 122 away from the lower crossbeam 121. Furthermore, the rear fork 124 has a hollow structure, allowing cables to enter the hollow rear fork 124 after leaving the lower support member 122, further concealing the cables.

[0139] Further reading Figures 1 to 8 In some embodiments, the lower support 122 is provided with an upper mounting seat 1222, and the rear fork 124 is provided with a lower mounting seat 1241.

[0140] The upper mounting base 1222 and the lower mounting base 1241 are used to connect the shock absorber. Specifically, in this embodiment, the upper mounting base 1222 is disposed in the lower support member 122, and the lower mounting base 1241 is disposed on the rear fork 124 near the lower support member 122.

[0141] In the aforementioned embodiments, the upper crossbeam 111 and the lower crossbeam 121 can be made of aluminum profiles. In other embodiments, the upper crossbeam 111 and the lower crossbeam 121 can be made of steel.

[0142] Example 8:

[0143] exist Figure 12 , Figure 13 In the embodiment shown, a telescopic frame structure 10 is provided, wherein the upper main body 11 and the lower main body 12 of the structure are connected by a movable and adjustable telescopic connection; the upper crossbeam 11 is provided with a plurality of upper crossbeam adjustment holes 1119 along the first direction;

[0144] The lower crossbeam 121 is provided with a plurality of lower crossbeam adjustment holes 1214 along the first direction; the locking assembly 123 locks the adjusted upper crossbeam adjustment hole 1119 and the interior of the lower crossbeam adjustment hole 1214.

[0145] Furthermore, the upper crossbeam 111 is a square or round tube with a single or double layer structure; the lower crossbeam 121 and the upper crossbeam 111 are connected by a mutually fitting movable connection.

[0146] Specifically, the upper crossbeam 111 includes a bent pipe 1114, a support pipe 1117, and a bridge plate 1118. Two bent pipes 1114 are distributed on both sides and connected by two bridge plates 1118 at the top and bottom, respectively. Multiple vertical support pipes 1117 are provided between the bent pipes 1114. A cavity is formed in the upper crossbeam 111 for installing the battery and control box. The lower crossbeam 121 is fitted to the lower part of the bridge plate 1118 below the upper crossbeam 111 and is locked by a locking assembly 123. The locking assembly includes an adjusting locking bolt 1234. This embodiment has a simple structure, can be made of steel, and is inexpensive.

[0147] The first surface 111a and the second surface 111b of the upper crossbeam 111 are respectively disposed on the upper surface and the lower surface of the upper and lower bridge plates 1118.

[0148] The upper crossbeam 111 and the lower crossbeam 121 are arranged in a surface-fitting telescopic connection structure along the first direction; that is, the second surface 111b on the upper crossbeam and the upper beam surface 121a on the lower crossbeam fit together and telescopically extend and retract, realizing a sliding connection in the first direction X, thereby extending or shortening the telescopic frame structure, and thus realizing the extension or shortening of the whole vehicle.

[0149] Furthermore, the shock absorber can also be installed in other locations. Referring again to Figure 11, the rear fork 124 includes a rear fork plate 1242 at the end away from the lower support member 122. A lower mounting seat 1241 is provided on the rear fork plate 1242, and an upper mounting seat 1222 is provided on the lower crossbeam 121. Specifically, the upper mounting seat 1222 is located at the tail of the lower crossbeam 121, and the shock absorber is connected between the upper mounting seat 1222 and the lower mounting seat 1241. It should be noted that multiple upper and lower mounting seats can coexist, facilitating the installation of shock absorbers at different locations according to different needs.

[0150] Example 9:

[0151] See Figure 14 , Figure 15 and combined Figure 7 , Figure 8 The present invention also provides a telescopic electric vehicle, wherein the telescopic electric vehicle 100 includes the telescopic frame structure 10 of any of the above embodiments.

[0152] A seat cushion 20 is provided above the upper crossbeam 111. A head tube 112 is provided at the front end of the upper crossbeam 111. A riser 31 is connected to the top end of the head tube 112. The riser 31 can be fixedly or rotatably connected to the head tube 112. A handlebar 30 is connected to the top end of the riser 31 to form a fixed handlebar or a foldable handlebar. Figure 15 The image shows the foldable electric vehicle in its fully retracted state with the handlebars folded.

[0153] The head tube 112 is connected to a front fork 40 at its bottom end, and the front fork 40 is rotatably connected to a front wheel 50 at its bottom end. The rear wheel 60 is rotatably connected to a rear fork 1242.

[0154] A wheel 70 and a foot pedal 71 are rotatably connected to the bottom of the lower support 122. A shock absorber 90 is connected between the upper mounting base 1222 and the lower mounting base 1241. It should be noted that... Figure 14 and Figure 15 The two positions where the shock absorber 90 can be set are shown, and the two shock absorbers 90 do not need to exist at the same time.

[0155] The telescopic electric vehicle 100 also includes a battery 80 and a control box (not shown), which are respectively located in the battery compartment 111c and the control box compartment 111d.

[0156] The telescopic frame structure 10 of this utility model can also be applied to bicycles, providing a telescopic bicycle.

[0157] The telescopic frame structure and telescopic two-wheeler described in the above embodiments are mainly composed of an upper frame and a lower frame. The upper crossbeam in the upper frame can be a single-layer or double-layer structure. The upper crossbeam can be made of sheet metal or tubing, and the tubing can be square or round. The upper crossbeam can integrate a battery and controller compartment, and can use a single or double slide rail. Internal wiring channels, gear drive channels, and concave positioning channels can be provided on the upper crossbeam. The upper rear of the upper crossbeam is the seat mounting position. The lower frame mainly includes a lower crossbeam, a lower support member, and a locking assembly. The lower support member is equipped with a bottom bracket and a connecting shaft for the rear fork, a rear swingarm, and a shock absorber mounted on the rear swingarm.

[0158] This utility model's telescopic frame structure can be manually extended and locked, as well as electrically extended and retracted. It also features multi-functional and multi-style structures, making it suitable for various types of electric vehicles, such as ride-hailing electric vehicles and electric bicycles. It is compatible with different wheel diameters and vehicle sizes, and this structure can be extended to create various different frame designs and complete vehicles. This utility model's telescopic frame structure can be widely applied to various types of two-wheeled bicycles, electric bicycles, and other vehicle types; this utility model does not impose any specific limitations.

[0159] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A telescoping frame architecture, characterized by, It includes an upper main body (11) and a lower main body (12) that are arranged vertically and connected in a telescopic manner. The main body (11) of the structure includes an upper crossbeam (111) at the front end for connecting with the front wheel of the handlebars, the upper crossbeam (111) extending along a first direction; The lower body (12) of the aforementioned structure includes a lower crossbeam (121), a lower support member (122), and a locking assembly (123) for locking or releasing the upper and lower crossbeams; the lower crossbeam (121) extends along a first direction; wherein, The upper crossbeam (111) and the lower crossbeam (121) are connected in a surface-fitting telescopic manner along the first direction; The upper end of the lower support member (122) is connected to the lower crossbeam (121), and the lower end of the lower support member (122) extends away from the upper crossbeam.

2. The telescopic frame structure according to claim 1, characterized in that: The upper crossbeam (111) includes a first surface (111a) and a second surface (111b) disposed opposite to each other; the lower crossbeam (121) is provided with an upper beam surface (121a), and the upper beam surface (121a) of the lower crossbeam (121) and the second surface (111b) of the upper crossbeam (111) form the surface-fitting telescopic connection.

3. The telescopic frame structure according to claim 2, characterized in that: The upper main body (11) and the lower main body (12) of the architecture are connected by a sliding telescopic connection; The upper crossbeam (111) is provided with a slide (1111) extending along the first direction. The lower crossbeam (121) is provided with a sliding member (1211), which is slidably connected to the slide rail (1111).

4. The telescopic frame structure according to claim 2, characterized in that: The upper main body (11) and the lower main body (12) of the architecture are connected by a movable, adjustable and telescopic connection; The upper crossbeam (111) is provided with a plurality of upper crossbeam adjustment holes (1119) along the first direction; The lower crossbeam (121) is provided with a plurality of lower crossbeam adjustment holes (1214) along the first direction.

5. The telescopic frame structure according to any one of claims 1 to 4, characterized in that: The locking assembly (123) adopts a manual quick-release locking structure; the manual quick-release locking structure includes an eccentric quick-release handle (1231) and a quick-release screw (1232). The locking assembly (123) also includes an anti-loosening screw (1233).

6. The telescoping frame architecture of any one of claims 1 to 4, wherein: The locking assembly includes an adjusting locking bolt (1234).

7. The telescoping frame architecture of any one of claims 1 to 4, wherein: It also includes an electric telescopic mechanism, which adopts a gear-driven sliding telescopic structure.

8. The telescopic frame structure according to claim 7, characterized in that: The gear-driven sliding telescopic structure includes a drive motor (101), a drive gear (102), and a rack (103). The drive motor (101) is mounted on the lower body (12) of the structure. The drive end of the drive motor (101) is connected to the drive gear (102). The rack (103) is mounted on the upper crossbeam (111) and extends along the first direction. The drive gear (102) meshes with the rack (103).

9. The telescopic frame structure according to any one of claims 1 to 4, characterized in that: The telescopic frame structure also includes a limiting structure; The limiting structure includes a positioning groove (1112) provided on the upper crossbeam (111) and a positioning protrusion (1212) provided on the lower crossbeam (121). The positioning groove (1112) extends along the first direction, and the width of the positioning groove (1112) gradually increases along the direction from the upper crossbeam to the lower crossbeam; The positioning protrusion (1212) extends along the first direction, and the shape of the positioning protrusion (1212) is adapted to the shape of the positioning groove (1112).

10. The telescopic frame structure according to any one of claims 1 to 4, characterized in that: The upper crossbeam (111) is provided with a battery compartment (111c) and a control box compartment (111d), and the battery compartment (111c) and the control box compartment (111d) are distributed along a first direction; A battery power base (1116) is provided between the battery compartment (111c) and the control box compartment (111d), and the battery power base (1116) has connectors on both sides that extend into the battery compartment (111c) and the control box compartment (111d) respectively. The battery compartment (111c) extends from the end opposite to the control box compartment (111d) to the end of the upper crossbeam and forms an opening.

11. The telescopic frame structure according to any one of claims 1 to 4, characterized in that: The main body (12) under the aforementioned architecture also includes a rear fork (124). One end of the rear fork (124) is rotatably connected to the lower end of the lower support (122); The lower support member (122) is provided with an upper mounting seat (1222), and the rear fork is provided with a lower mounting seat (1241). The upper mounting seat (1222) and the lower mounting seat (1241) are used to install shock absorbers.

12. The telescopic frame structure according to any one of claims 1 to 4, characterized in that: The main body (12) under the aforementioned architecture also includes a rear fork (124). One end of the rear fork (124) is rotatably connected to the lower end of the lower support (122); The rear fork (124) has a rear fork plate (1242) at the end away from the lower support (122). The rear fork plate (1242) is provided with a lower mounting seat (1241), and the lower crossbeam (121) is provided with an upper mounting seat (1222). The upper mounting seat (1222) and the lower mounting seat (1241) are used to install shock absorbers.

13. The telescopic frame structure according to any one of claims 1 to 4, characterized in that: The upper crossbeam (111) is provided with a wiring groove (1113) extending along a first direction and a first wiring hole communicating with the wiring groove (1113); The lower support member (122) is provided with a second wiring hole (1221). The upper crossbeam (111) is also fixed with a lamp holder plate (1115) extending toward the lower crossbeam (121).

14. The telescopic frame structure according to any one of claims 1 to 4, characterized in that: The upper crossbeam (111) is a square or round tube with a single or double layer structure; The lower crossbeam (121) and the upper crossbeam (111) are connected by a mutual interlocking or mutual contacting movable connection.

15. A folding two-wheeled vehicle, including electric and non-electric bicycles, characterized by: Includes the telescopic frame structure as described in any one of claims 1-14.

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