WO2024027509A1 - 三轮自行车 - Google Patents

三轮自行车 Download PDF

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Publication number
WO2024027509A1
WO2024027509A1 PCT/CN2023/108375 CN2023108375W WO2024027509A1 WO 2024027509 A1 WO2024027509 A1 WO 2024027509A1 CN 2023108375 W CN2023108375 W CN 2023108375W WO 2024027509 A1 WO2024027509 A1 WO 2024027509A1
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WO
WIPO (PCT)
Prior art keywords
wheeled bicycle
main beam
frame body
universal wheel
frame
Prior art date
Application number
PCT/CN2023/108375
Other languages
English (en)
French (fr)
Inventor
欧华松
韩德玮
莫怡平
郑汉信
Original Assignee
大行科工(深圳)股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大行科工(深圳)股份有限公司 filed Critical 大行科工(深圳)股份有限公司
Publication of WO2024027509A1 publication Critical patent/WO2024027509A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B62K15/006—Collapsible or foldable cycles the frame being foldable
    • B62K15/008—Collapsible or foldable cycles the frame being foldable foldable about 2 or more axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B62K2015/005—Collapsible or foldable cycles having additional wheels for use when folded or collapsed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K2204/00—Adaptations for driving cycles by electric motor

Definitions

  • the present application relates to the technical field of bicycles, and in particular to a three-wheeled bicycle.
  • Bicycles are powered by pedals and are a green and environmentally friendly means of transportation.
  • Bicycles generally include two-wheeled bicycles and three-wheeled bicycles. Three-wheeled bicycles can be used to load goods and carry people, and are widely used in daily life.
  • a three-wheeled bicycle including:
  • a vehicle frame the vehicle frame includes a first frame body and a second frame body connected to each other;
  • Folder the folder connects the first frame body and the second frame body, and the first frame body and the second frame body are folded or unfolded by the folder;
  • First wheels two of the first wheels are assembled on the first frame
  • a second wheel, one of the second wheels is assembled on the second frame
  • a universal wheel assembly the universal wheel assembly is assembled on the vehicle frame and can move relative to the vehicle frame to switch between a first position and a second position.
  • the universal wheel assembly includes a universal wheel. ; When the universal wheel assembly is in the first position, the two first wheels and the second wheels form a first supporting surface for supporting the three-wheeled bicycle. When the universal wheel When the assembly is in the second position, the two first wheels and the universal wheel form a second supporting surface for supporting the three-wheeled bicycle.
  • the first frame body includes a first main beam and a first fork, and the first fork and the The first main beam is hinged, and the first wheel is connected to the first fork;
  • the three-wheeled bicycle also includes a carriage, and the carriage is installed on the first fork;
  • the second frame body includes The second main beam and the second fork are connected, the second wheel is connected to the second fork; the folder connects the first main beam and the second main beam.
  • the first frame further includes a first standpipe connected to the first main beam;
  • the three-wheeled bicycle includes a handle, and the handle is rotatably provided on the first standpipe. superior.
  • the three-wheeled bicycle further includes a quick release connected to the first standpipe and capable of switching between a first state and a second state relative to the first standpipe. ; When the quick release is in the first state, the quick release allows the handle to move relative to the first standpipe; when the quick release is in the second state, the quick release limits The handle moves relative to the first riser.
  • the second frame body further includes a second standpipe, a connecting tube and a connecting part, and the second standpipe is connected to both the second main beam and the second fork, so
  • the connecting pipe is connected to both the second main beam and the second vertical pipe, the connecting part is connected to the connecting pipe, the universal wheel assembly is hinged to the connecting part;
  • the three-wheeled bicycle also It includes a vehicle seat, and the vehicle seat is installed on the second standpipe.
  • the first main beam and the second main beam are arranged at an acute angle, and the extension direction of the first main beam is in line with the The extension direction of the axis of the first wheel is inclined.
  • the three-wheeled bicycle further includes a carriage, which is installed on the first frame; when the three-wheeled bicycle is in an unfolded state, the lowest point of the carriage is lower than the The axis position of the first wheel.
  • the three-wheeled bicycle further includes a carriage, which is installed on the first frame; the carriage is detachably connected to the first frame.
  • the carriage is detachably connected to the first frame.
  • the three-wheeled bicycle further includes a hinged shaft connected to the first frame body or the second frame body, and the universal wheel assembly is connected to the universal wheel assembly through the hinged shaft.
  • the first frame body or the second frame body is hinged;
  • the universal wheel assembly also includes a connecting shaft, a sleeve and an elastic member, one end of the connecting shaft is hinged with the hinge shaft, and the universal wheel
  • the bracket is rotated at the other end of the connecting shaft; a limiting protrusion is provided on the outer surface of the connecting shaft, the elastic member and the sleeve are sleeved outside the connecting shaft, and the elastic member compresses Disposed between the bushing and the limiting protrusion; when the universal wheel assembly is in the first position and the second position, the bushing is in contact with the second frame body Limit.
  • the second frame body is provided with a first limiting surface and a second limiting surface; when the universal wheel assembly is in the first position, the shaft sleeve moves away from the The end surface of the elastic member is in contact with the first limiting surface to restrict the universal wheel assembly from switching from the first position to the second position; when the universal wheel assembly is in the second position When placed, the end surface of the sleeve away from the elastic member contacts the second limiting surface, restricting the universal wheel assembly from switching from the second position to the first position.
  • the first frame includes a first main beam and a first fork, the first fork is hingedly connected to the first main beam, and the first wheel is connected to the first vehicle.
  • the second frame body includes a second main beam and a second fork connected to each other, the second wheel is connected to the second fork;
  • the folder connects the first main beam and the second fork. Describe the second main beam.
  • the folder includes a first joint, a second joint and a handle, the first joint is hinged to the second joint, and the handle is connected to the first joint or the second joint. Hinged, the first joint is connected to the first main beam, and the second joint is connected to the second main beam.
  • the extending direction of the second main beam is substantially parallel to the extending direction of the axis of the first wheel.
  • the first frame body further includes a first vertical pipe and an inclined support pipe, the first vertical pipe is connected to the first main beam, and the inclined support pipe is diagonally supported on the third between a main beam and the first vertical pipe.
  • the second frame body further includes a second standpipe, the second standpipe is connected to the second main beam;
  • the three-wheeled bicycle further includes a motor system, and the motor system is installed In the installation space formed by the second vertical pipe and the second main beam.
  • Figure 1 is an isometric view of a three-wheeled bicycle in an unfolded state according to an embodiment of the present application
  • Figure 2 is a side view of the three-wheeled bicycle shown in Figure 1;
  • Figure 3 is a front view of the three-wheeled bicycle shown in Figure 1;
  • Figure 4 is an isometric view of the three-wheeled bicycle shown in Figure 1 when it is in a folded state;
  • Figure 5 is another isometric view of the three-wheeled bicycle shown in Figure 4.
  • Figure 6 is a top view of the three-wheeled bicycle shown in Figure 4.
  • Figure 7 is a structural view of the other parts of the three-wheeled bicycle shown in Figure 1 installed in its carriage;
  • Figure 8 is another isonometric view of the three-wheeled bicycle shown in Figure 4.
  • Figure 9 is another isometric view of the three-wheeled bicycle shown in Figure 4.
  • Figure 10 is an isometric view of a three-wheeled bicycle in an unfolded state according to another embodiment of the present application.
  • Figure 11 is another isometric view of the three-wheeled bicycle shown in Figure 10;
  • Figure 12 is an enlarged view of position A of the three-wheeled bicycle shown in Figure 10;
  • FIG. 13 is an enlarged view of position B of the three-wheeled bicycle shown in FIG. 11 .
  • 100. Three-wheeled bicycle 10. Frame; 11. First frame; 111. First main beam; 112. First fork; 113. First vertical tube; 114. Inclined support tube; 12. Second frame Body; 121. Second main beam; 122. Second fork; 123. Second standpipe; 124. Connecting pipe; 125. Connection part; 1251. First limiting surface; 1252. Second limiting surface; 20 , the first wheel; 30, the second wheel; 40, the carriage; 50, the handle; 51, the sleeve; 52, the handle body; 60, the seat; 70, the folding device; 71, the first joint; 72, the second joint ; 73. Handle; 80. Universal wheel assembly; 81. Universal wheel; 82. Connecting shaft; 821. Limiting boss; 83. Bushing; 84. Elastic member; 90. Articulated shaft; 110. Quick release; 120. Motor system.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be two The internal connection between two elements or the interaction between two elements, unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • an embodiment of the present application provides a three-wheeled bicycle 100 , including a frame 10 , two first wheels 20 and a second wheel 30 .
  • the first wheel 20 and the second wheel 30 are both installed on the frame 10 .
  • the two first wheels 20 are coaxially arranged.
  • the second wheel 30 is located on the same side of the two first wheels 20.
  • the two first wheels 20 are used as the front wheels of the three-wheeled bicycle 100, and the second wheels 30 are used as the rear wheels of the three-wheeled bicycle 100. That is, when the three-wheeled bicycle 100 is walking, the second wheels 30 are located on the third wheel. One wheel 20 rear.
  • the two first wheels 20 are used as the rear wheels of the three-wheeled bicycle 100, and the second wheels 30 are used as the front wheels of the three-wheeled bicycle 100. That is, when the three-wheeled bicycle 100 is walking, the second wheels 30 are located at in front of the first wheel 20 .
  • the vehicle frame 10 includes a first frame body 11 and a second frame body 12 that are connected to each other.
  • the first wheel 20 is installed on the first frame body 11 and the second wheel 30 is installed on the second frame body 12 .
  • the first frame 11 includes a first main beam 111 and a first fork 112 .
  • the first fork 112 is hingedly connected to the first main beam 111
  • the first wheel 20 is connected to the first fork 112 .
  • the second frame body 12 includes a second main beam 121 and a second fork 122 that are connected to each other.
  • the second main beam 121 is connected to the first main beam 111
  • the second wheel 30 is connected to the second fork 122 .
  • the first fork 112 is hingedly connected to the first main beam 111, when the three-wheeled bicycle 100 moves, the first fork 112 can rotate relative to the first main beam 111, thereby causing the first wheel 20 to rotate relative to the second wheel. 30 turns to facilitate 100 turns of the tricycle.
  • the three-wheeled bicycle 100 also includes a carriage 40, which is installed on the first fork 112 to facilitate loading of goods and people.
  • the lowest point of the carriage 40 is lower than the axis center position of the first wheel 20 . In this way, the center of gravity of the entire three-wheeled bicycle 100 is lowered, thereby improving the stability of the three-wheeled bicycle 100 .
  • the first frame 11 further includes a first vertical pipe 113 connected to the first main beam 111 .
  • the three-wheeled bicycle 100 further includes a handle 50 , and the handle 50 is installed on the first vertical tube 113 .
  • the second frame body 12 also includes a second standpipe 123, and the three-wheeled bicycle 100 further includes a seat 60, and the seat 60 is installed on the second standpipe 123.
  • the handle 50 is installed on the first frame 11 and the seat 60 is installed on the second frame 12
  • the rider sits on the seat 60 and holds the handle 50 to ride the three-wheeled bicycle 100.
  • the first wheel 20 is installed on the first frame 11 and the second wheel 30 is installed on the second frame 12, at this time, the second wheel 30 serves as the rear wheel of the three-wheeled bicycle 100.
  • the first frame body 11 also includes an oblique support tube 114.
  • the oblique support tube 114 is diagonally supported between the first main beam 111 and the first vertical pipe 113 to improve the strength of the first frame body 11.
  • the diagonal support pipe 114 is provided on the side of the first vertical pipe 113 close to the second frame body 12 .
  • the three-wheeled bicycle 100 further includes a folding device 70.
  • the folding device 70 connects the first frame body 11 and the second frame body 12. Specifically, the folding device 70 connects the first main beam 111 and the second main beam 121. The first frame body 11 and the second frame body 12 are folded or unfolded through the folder 70 . In this way, when the three-wheeled bicycle 100 is in use, the first frame 11 and the second frame 12 are unfolded through the folding device 70, so that the three-wheeled bicycle 100 is in an unfolded state, so that the three-wheeled bicycle 100 can be used normally.
  • the first frame 11 and the second frame 12 are folded by the folding device 70 so that the three-wheeled bicycle 100 is in a folded state to facilitate the storage of the three-wheeled bicycle 100 .
  • the folder 70 includes a first joint 71 , a second joint 72 and a handle 73 .
  • the first joint 71 is connected to the first main beam 111
  • the second joint 72 is connected to the second main beam 121 .
  • the first joint 71 is hinged to the second joint 72
  • the handle 73 is hinged to the first joint 71 or the second joint 72 .
  • the folder 70 has a tightened state and a separated state.
  • the folder 70 is in the tightened state, the first joint 71 and the second joint 72 are close to each other, and the handle 73 locks the first joint 71 and the second joint 72.
  • the first frame 11 and the second frame 12 are unfolded. .
  • the handle 73 unlocks the first joint 71 and the second joint 72, and the first joint 71 and the second joint 72 are separated.
  • the first frame 11 and the second frame 12 are folded.
  • the second main beam 121 is provided at one end of the first main beam 111 in the extending direction of the first main beam 111 .
  • the first main beam 111 and the second main beam 121 are arranged at an acute angle, and the extension direction of the first main beam 111 is aligned with the axis of the first wheel 20
  • the extension direction is set obliquely. In this way, the volume of the three-wheeled bicycle 100 is smaller, which accordingly reduces the space occupied by the three-wheeled bicycle 100 and facilitates the storage of the three-wheeled bicycle 100 .
  • the carriage box 40 is detachably connected to the first frame 11 .
  • the carriage box 40 is detachably connected to the first frame 11 .
  • other parts of the three-wheeled bicycle 100 can be accommodated in the carriage 40 . In this way, the storage of the three-wheeled bicycle 100 is convenient.
  • the extension direction of the second main beam 121 is substantially parallel to the extension direction of the axis of the first wheel 20 .
  • the three-wheeled bicycle 100 also includes a universal wheel assembly 80 assembled on the first frame 11 or the second frame 12, which can move relative to the frame 10 to between the first position and the second position. switch.
  • the universal wheel assembly 80 When the universal wheel assembly 80 is in the first position (see FIG. 2 ), the two first wheels 20 and the second wheels 30 form a first supporting surface for supporting the three-wheeled bicycle 100 . That is, when the three-wheeled bicycle 100 is placed on the ground, the universal wheel assembly 80 will not lift up the first wheel 20 and the second wheel 30 .
  • the universal wheel assembly 80 is in the second position (see FIGS. 10 and 11 )
  • the two first wheels 20 and the universal wheels 81 of the universal wheel assembly 80 form a second supporting surface for supporting the three-wheeled bicycle 100 . That is, when the three-wheeled bicycle 100 is placed on the ground, the universal wheel assembly 80 can push up the second wheel 30 .
  • the universal wheel assembly 80 when the universal wheel assembly 80 is in the first position, the two first wheels 20 and the second wheels 30 form a first supporting surface supported on the ground, and the universal wheel assembly 80 does not contact the ground, and it will not Interfering with the normal running of the three-wheeled bicycle 100.
  • the universal wheel assembly 80 When the universal wheel assembly 80 is in the second position, the two first wheels 20 and the universal wheel 81 form a second supporting surface supported on the ground. At this time, the second wheel 30 is lifted up by the universal wheel 81 and is folded or folded. It is more labor-saving when unfolding the three-wheeled bicycle 100.
  • the three-wheeled bicycle 100 when the three-wheeled bicycle 100 is in the folded state, since the universal wheel 81 can move 360° in all directions, the three-wheeled bicycle 100 can also be moved with the help of the universal wheel 81, which facilitates moving the three-wheeled bicycle 100 in the folded state.
  • the second frame body 12 also includes a connecting pipe 124 and a connecting part 125.
  • the connecting pipe 124 is connected to the second main beam 121 and the second vertical pipe 123.
  • the connecting part 125 is connected to the connecting pipe 124.
  • the wheel assembly 80 is hingedly connected to the connecting portion 125 . Providing the connecting pipe 124 to connect to both the second main beam 121 and the second vertical pipe 123 can improve the connection strength between the universal wheel assembly 80 and the second frame body 12 .
  • the connecting pipe 124 may also be provided to connect only to the second main beam 121 or the second vertical pipe 123 .
  • the three-wheeled bicycle 100 also includes a hinge shaft 90, which is connected to the first frame body 11 or the second frame body 12. Specifically, the hinge shaft 90 is connected to the connecting portion 125 of the second frame body 12. Specifically, the hinge shaft 90 is connected to the connecting portion 125 of the second frame body 12. 90 is passed through the connecting part 125.
  • the universal wheel assembly 80 is hingedly connected to the first frame body 11 or the second frame body 12 through the hinge shaft 90. Specifically, the universal wheel assembly 80 also includes a connecting shaft 82.
  • the universal wheel 81 is connected to one end of the connecting shaft 82, and is hingedly connected.
  • the shaft 90 is passed through the other end of the connecting shaft 82 .
  • the universal wheel assembly 80 also includes a sleeve 83 and an elastic member 84.
  • a limiting protrusion 821 is provided on the outer surface of the connecting shaft 82.
  • the elastic member 84 and the sleeve 83 are both sleeved on the connecting shaft 82.
  • the elastic member 84 is compressed. between the sleeve 83 and the limiting protrusion 821.
  • the universal wheel assembly 80 when the universal wheel 81 is in the first position and the second position, under the action of the elastic member 84, the sleeve 83 It abuts the connecting portion 125 , thus restricting the universal wheel assembly 80 from switching from the first position to the second position under the action of gravity. At the same time, during the process of folding or unfolding the three-wheeled bicycle 100 , the universal wheel assembly 80 is restricted from switching from the first position to the second position. Switch the second position to the first position.
  • the elastic member 84 is a spring.
  • the type of the elastic member 84 is not limited.
  • the connecting part 125 is provided with a first limiting surface 1251 and a second limiting surface 1252.
  • first limiting surface 1251 When the universal wheel assembly 80 is in the first position, the end surface of the sleeve 83 away from the elastic member 84 contacts the first limiting surface 1251 to restrict the universal wheel assembly 80 from switching from the first position to the second position;
  • the end surface of the sleeve 83 away from the elastic member 84 contacts the second limiting surface 1252 to limit the universal wheel assembly 80 from switching from the second position to the first position. In this way, the limiting effect is enhanced through face-to-face contact.
  • the handle 50 is rotatably disposed on the first standpipe 113. In this way, when the three-wheeled bicycle 100 is folded, the handle 50 can be rotated to a suitable position to further reduce the space occupied by the three-wheeled bicycle 100 when folded. Space.
  • the three-wheeled bicycle 100 further includes a quick release 110 .
  • the quick release 110 is connected to the first standpipe 113 and can switch between the first state and the second state relative to the first standpipe 113 .
  • the quick release 110 allows the handle 50 to move relative to the first standpipe 113 ;
  • the quick release 110 limits the movement of the handle 50 relative to the first standpipe 113 .
  • the quick release 110 is arranged so that the handle 50 can be locked while riding for safe riding; and when the three-wheeled bicycle 100 needs to be switched between the folded state and the unfolded state, the quick release 110 is in the first state so that The handle 50 moves relative to the first standpipe 113 .
  • the handle 50 includes a sleeve 51 and a handle body 52 that are connected to each other.
  • the sleeve 51 is sleeved with the first vertical pipe 113 .
  • the quick release 110 allows the sleeve 51 to move relative to the first standpipe 113 ;
  • the quick release 110 limits the movement of the sleeve 51 relative to the first standpipe 113 sports.
  • the quick release 110 allows the sleeve 51 to rotate and move axially relative to the first standpipe 113; when it is in the second state, the quick release 110 limits the sleeve 51 relative to the first standpipe 113.
  • a vertical tube 113 rotates and moves axially.
  • the three-wheeled bicycle 100 further includes a motor system 120.
  • the motor system 120 is installed in the installation space formed by the second standpipe 123 and the second main beam 121. In this way, human-powered riding and motor-assisted riding can be integrated. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

本申请涉及一种三轮自行车，包括：车架(10)，包括相互连接的第一架体(11)与第二架体(12)；折叠器(70)，连接第一架体(11)与第二架体(12)，第一架体(11)与第二架体(12)通过折叠器(70)折叠或展开；装配于第一架体(11)上的两个第一车轮(20)及装配于第二架体(12)上的一个第二车轮(30)；装配于第一架体(11)或第二架体(12)上的万向轮组件(80)，能够相对于第二架体(12)运动以在第一位置与第二位置之间切换；当万向轮组件(80)处于第一位置时，两个第一车轮(20)与第二车轮(30)三者形成支撑三轮自行车的第一支撑面，当万向轮组件(80)处于第二位置时，两个第一车轮(20)与万向轮组件(80)的万向轮(81)三者形成支撑三轮自行车的第二支撑面。当万向轮组件(80)处于第二位置时，第二车轮(30)被万向轮(81)顶起，在折叠或展开三轮自行车时较为省力。

Description

三轮自行车
相关申请
本申请要求2022年08月04日申请的，申请号为202210931522.8，名称为“三轮自行车”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及自行车技术领域，特别是涉及一种三轮自行车。
背景技术
自行车以脚踩踏板为动力，是绿色环保的交通工具。自行车一般包括两轮自行车及三轮自行车，三轮自行车可以用来装载货物及搭载人，在日常生活中得到了应用广泛。
但是，由于三轮自行车体积较大，在不使用存放时需要占用较大的空间，给存放造成不便。
发明内容
基于此，有必要针对传统三轮自行车存放不便的问题，提供一种存放方便的三轮自行车。
一种三轮自行车，包括：
车架，所述车架包括相互连接的第一架体与第二架体；
折叠器，所述折叠器连接所述第一架体与所述第二架体，所述第一架体与所述第二架体通过所述折叠器折叠或展开；
第一车轮，两个所述第一车轮装配于所述第一架体上；
第二车轮，一个所述第二车轮装配于所述第二架体上；以及
万向轮组件，所述万向轮组件装配于所述车架上，能够相对于所述车架运动以在第一位置与第二位置之间切换，所述万向轮组件包括万向轮；当所述万向轮组件处于所述第一位置时，两个所述第一车轮与所述第二车轮三者形成支撑所述三轮自行车的第一支撑面，当所述万向轮组件处于所述第二位置时，两个所述第一车轮与所述万向轮三者形成支撑所述三轮自行车的第二支撑面。
在其中一个实施例中，所述第一架体包括第一主梁及第一车叉，所述第一车叉与所述 第一主梁铰接，所述第一车轮与所述第一车叉连接；所述三轮自行车还包括车箱，所述车箱安装于所述第一车叉上；所述第二架体包括相互连接的第二主梁及第二车叉，所述第二车轮与所述第二车叉连接；所述折叠器连接所述第一主梁与所述第二主梁。
在其中一个实施例中，所述第一架体还包括与所述第一主梁连接的第一竖管；所述三轮自行车包括把手，所述把手可转动设于所述第一竖管上。
在其中一个实施例中，所述三轮自行车还包括快拆，所述快拆与所述第一竖管连接且相对于所述第一竖管能够在第一状态与第二状态之间切换；在所述快拆处于所述第一状态时，所述快拆允许所述把手相对于所述第一竖管运动；在所述快拆处于所述第二状态时，所述快拆限制所述把手相对于所述第一竖管运动。
在其中一个实施例中，所述第二架体还包括第二竖管、连接管及连接部，所述第二竖管与所述第二主梁及所述第二车叉均连接，所述连接管与所述第二主梁及所述第二竖管均连接，所述连接部与所述连接管连接，所述万向轮组件与所述连接部铰接；所述三轮自行车还包括车座，所述车座安装于所述第二竖管上。
在其中一个实施例中，当所述三轮自行车处于折叠状态时，所述第一主梁与所述第二主梁之间呈锐角设置，且所述第一主梁的延伸方向与所述第一车轮的轴线的延伸方向倾斜设置。
在其中一个实施例中，所述三轮自行车还包括车箱，所述车箱安装于所述第一架体上；在所述三轮自行车处于展开状态时，所述车箱的最低点低于所述第一车轮的轴心位置。
在其中一个实施例中，所述三轮自行车还包括车箱，所述车箱安装于所述第一架体上；所述车箱与所述第一架体可拆卸连接，当所述三轮自行车处于折叠状态时，所述三轮自行车的剩余部分能够收容于所述车箱内。
在其中一个实施例中，所述三轮自行车还包括铰接轴，所述铰接轴与所述第一架体或所述第二架体连接，所述万向轮组件通过所述铰接轴与所述第一架体或所述第二架体铰接；所述万向轮组件还包括连接轴、轴套及弹性件，所述连接轴的一端与所述铰接轴铰接，所述万向轮的支架转动设于所述连接轴的另一端；所述连接轴的外表面凸设有限位凸起，所述弹性件及所述轴套均套接于所述连接轴外，所述弹性件压缩设于所述轴套与所述限位凸起之间；当所述万向轮组件处于所述第一位置与所述第二位置时，所述轴套与所述第二架体抵接限位。
在其中一个实施例中，所述第二架体上设有第一限位面与第二限位面；当所述万向轮组件处于所述第一位置时，所述轴套远离所述弹性件的端面与所述第一限位面抵接，限制所述万向轮组件由所述第一位置切换至所述第二位置；当所述万向轮组件处于所述第二位 置时，所述轴套远离所述弹性件的端面与所述第二限位面抵接，限制所述万向轮组件由所述第二位置切换至所述第一位置。
在其中一个实施例中，所述第一架体包括第一主梁及第一车叉，所述第一车叉与所述第一主梁铰接，所述第一车轮与所述第一车叉连接；所述第二架体包括相互连接的第二主梁及第二车叉，所述第二车轮与所述第二车叉连接；所述折叠器连接所述第一主梁与所述第二主梁。
在其中一个实施例中，所述折叠器包括第一接头、第二接头与手柄，所述第一接头与所述第二接头铰接，所述手柄与所述第一接头或所述第二接头铰接，所述第一接头与所述第一主梁连接，所述第二接头与所述第二主梁连接。
在其中一个实施例中，当所述三轮自行车处于折叠状态时，所述第二主梁的延伸方向大致与所述第一车轮的轴线的延伸方向平行。
在其中一个实施例中，所述第一架体还包括第一竖管和斜撑管，所述第一竖管与所述第一主梁连接，所述斜撑管斜支撑于所述第一主梁与所述第一竖管之间。
在其中一个实施例中，所述第二架体还包括第二竖管，所述第二竖管与所述第二主梁连接；所述三轮自行车还包括电机系统，所述电机系统安装于所述第二竖管与所述第二主梁形成的安装空间内。
附图说明
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据公开的附图获得其他的附图。
图1为本申请一实施例提供的三轮自行车处于展开状态时的轴测图；
图2为图1中所示的三轮自行车的侧视图；
图3为图1中所示的三轮自行车的正视图；
图4为图1中所示的三轮自行车处于折叠状态时的轴测图；
图5为图4中所示的三轮自行车的另一轴测图；
图6为图4中所示的三轮自行车的俯视图；
图7为图1中所示的三轮自行车其他部分安装于其车箱内的结构图；
图8为图4中所示的三轮自行车的又一轴测图；
图9为图4中所示的三轮自行车的再一轴测图；
图10为本申请另一实施例提供的三轮自行车处于展开状态时的轴测图；
图11为图10中所示的三轮自行车的另一轴测图；
图12为图10中所示的三轮自行车的A处放大图；
图13为图11中所示的三轮自行车的B处放大图。
附图标记说明：
100、三轮自行车；10、车架；11、第一架体；111、第一主梁；112、第一车叉；113、第一竖管；114、斜撑管；12、第二架体；121、第二主梁；122、第二车叉；123、第二竖管；124、连接管；125、连接部；1251、第一限位面；1252、第二限位面；20、第一车轮；30、第二车轮；40、车箱；50、把手；51、套管；52、把体；60、车座；70、折叠器；71、第一接头；72、第二接头；73、手柄；80、万向轮组件；81、万向轮；82、连接轴；821、限位凸起；83、轴套；84、弹性件；90、铰接轴；110、快拆；120、电机系统。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两 个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
参阅图1，本申请一实施例提供一种三轮自行车100，包括车架10、两个第一车轮20及一个第二车轮30。第一车轮20与第二车轮30均安装于车架10上。具体地，两个第一车轮20同轴设置。在三轮自行车100的行走方向上，第二车轮30位于两个第一车轮20的同一侧。
一个具体实施方式中，两个第一车轮20作为三轮自行车100的前轮，第二车轮30作为三轮自行车100的后轮，即为当三轮自行车100行走时，第二车轮30位于第一车轮20的后方。另一个具体实施方式中，两个第一车轮20作为三轮自行车100的后轮，第二车轮30作为三轮自行车100的前轮，即为当三轮自行车100行走时，第二车轮30位于第一车轮20的前方。
车架10包括相互连接的第一架体11与第二架体12，第一车轮20安装于第一架体11上，第二车轮30安装于第二架体12上。
参阅图2，第一架体11包括第一主梁111及第一车叉112，第一车叉112与第一主梁111铰接，第一车轮20与第一车叉112连接。第二架体12包括相互连接的第二主梁121及第二车叉122，第二主梁121与第一主梁111连接，第二车轮30与第二车叉122连接。如此，由于第一车叉112与第一主梁111铰接，当三轮自行车100运动时，第一车叉112能够相对于第一主梁111转动，从而使得第一车轮20相对于第二车轮30转动，以便于三轮自行车100的转弯。
三轮自行车100还包括车箱40，车箱40安装于第一车叉112上，以便于其装载货物及搭载人。在三轮自行车处于展开状态时，车箱40的最低点低于第一车轮20的轴心位置。 这样，使得整个三轮自行车100的重心较低，以提高三轮自行车100的稳定性。
一实施例中，第一架体11还包括与第一主梁111连接的第一竖管113。参阅图2及图3，三轮自行车100还包括把手50，把手50安装于第一竖管113上。第二架体12还包括第二竖管123，三轮自行车100还包括车座60，车座60安装于第二竖管123上。这样，由于把手50安装于第一架体11，车座60安装于第二架体12上，骑行者坐在车座60上，手握把手50，以骑行三轮自行车100。而由于第一车轮20安装于第一架体11上，第二车轮30安装于第二架体12上，此时，第二车轮30作为三轮自行车100的后轮。
第一架体11还包括斜撑管114，斜撑管114斜支撑于第一主梁111与第一竖管113之间，以提高第一架体11的强度。具体地，斜撑管114设于第一竖管113靠近第二架体12的一侧。
一实施例中，三轮自行车100还包括折叠器70，折叠器70连接第一架体11与第二架体12，具体地，折叠器70连接第一主梁111与第二主梁121，第一架体11与第二架体12通过折叠器70折叠或展开。如此，三轮自行车100在使用时，第一架体11与第二架体12通过折叠器70展开，使三轮自行车100处于展开状态，以便于三轮自行车100正常使用。而当三轮自行车100不使用需要存放时，第一架体11与第二架体12通过折叠器70折叠，使三轮自行车100处于折叠状态，以便于三轮自行车100的存放。
参阅图2及图4，折叠器70包括第一接头71、第二接头72与手柄73，第一接头71与第一主梁111连接，第二接头72与第二主梁121连接。第一接头71与第二接头72铰接，手柄73与第一接头71或第二接头72铰接。折叠器70具有逼紧状态与分开状态。当折叠器70处于逼紧状态时，第一接头71与第二接头72贴近，手柄73锁紧第一接头71与第二接头72，此时，第一架体11与第二架体12展开。当折叠器70处于分开状态时，手柄73解锁第一接头71与第二接头72，第一接头71与第二接头72分离，此时，第一架体11与第二架体12折叠。
进一步，当三轮自行车100处于展开状态时，在第一主梁111的延伸方向上，第二主梁121设于第一主梁111的一端。参阅图5及图6，当三轮自行车100处于折叠状态时，第一主梁111与第二主梁121之间呈锐角设置，且第一主梁111的延伸方向与第一车轮20的轴线的延伸方向倾斜设置。这样，使得三轮自行车100的体积较小，相应地，减小了三轮自行车100所占据的空间，便于三轮自行车100的存放。
进一步，参阅图7，车箱40与第一架体11可拆卸连接，当三轮自行车100处于折叠状态时，三轮自行车100的其他部分能够收容于车箱40内。这样，便于三轮自行车100的存放。
一个具体实施例中，参阅图8及图9，当三轮自行车100处于折叠状态时，第二主梁121的延伸方向大致与第一车轮20的轴线的延伸方向平行。
参阅图2，三轮自行车100还包括装配于第一架体11或第二架体12上的万向轮组件80，其能够相对于车架10运动以在第一位置与第二位置之间切换。当万向轮组件80处于第一位置(参阅图2)时，两个第一车轮20与第二车轮30三者形成支撑三轮自行车100的第一支撑面。即为，当将三轮自行车100放置于地面时，万向轮组件80不会将第一车轮20及第二车轮30顶起。当万向轮组件80处于第二位置(参阅图10及图11)时，两个第一车轮20与万向轮组件80的万向轮81形成支撑三轮自行车100的第二支撑面。即为，当将三轮自行车100放置于地面时，万向轮组件80能够将第二车轮30顶起。
上述设置，当万向轮组件80处于第一位置时，两个第一车轮20与第二车轮30形成支撑于地面的第一支撑面，而万向轮组件80不与地面接触，其不会干扰三轮自行车100的正常行驶。当万向轮组件80处于第二位置时，两个第一车轮20与万向轮81形成支撑于地面的第二支撑面，此时第二车轮30被万向轮81顶起，在折叠或展开三轮自行车100时较为省力。同时，当三轮自行车100处于折叠状态时，由于万向轮81能够360°向各个方向运动，还可以借助万向轮81移动三轮自行车100，便于在折叠状态时移动三轮自行车100。
参阅图12及图13，第二架体12还包括连接管124及连接部125，连接管124与第二主梁121及第二竖管123均连接，连接部125与连接管124连接，万向轮组件80与连接部125铰接。设置连接管124与第二主梁121及第二竖管123均连接，能够提高万向轮组件80与第二架体12的连接强度。
可以想到的是，在另一些实施例中，也可以设置连接管124只与第二主梁121或第二竖管123连接。
三轮自行车100还包括铰接轴90，铰接轴90与第一架体11或第二架体12连接，具体地，铰接轴90与第二架体12的连接部125连接，具体地，铰接轴90穿设于连接部125。万向轮组件80通过铰接轴90与第一架体11或第二架体12铰接，具体地，万向轮组件80还包括连接轴82，万向轮81与连接轴82的一端连接，铰接轴90穿设于连接轴82的另一端。
万向轮组件80还包括轴套83及弹性件84，连接轴82的外表面凸设有限位凸起821，弹性件84及轴套83均套接于连接轴82外，弹性件84压缩设于轴套83与限位凸起821之间。当万向轮组件80处于第一位置与第二位置时，轴套83与连接部125抵接限位。
上述设置，当万向轮81处于第一位置与第二位置时，在弹性件84的作用下，轴套83 与连接部125抵接，如此，限制万向轮组件80在重力作用下从第一位置切换至第二位置，同时，限制在折叠或张开三轮自行车100的过程中，万向轮组件80从第二位置切换至第一位置。
一实施例中，弹性件84为弹簧。当然，在另一些实施例中，对于弹性件84的种类不作限定。
进一步，连接部125上设有第一限位面1251与第二限位面1252。当万向轮组件80处于第一位置时，轴套83远离弹性件84的端面与第一限位面1251抵接，限制万向轮组件80由第一位置切换至第二位置；当万向轮组件80处于第二位置时，轴套83远离弹性件84的端面与第二限位面1252抵接，限制万向轮组件80由第二位置切换至第一位置。这样，通过面面抵接，以增强限位效果。
一实施例中，把手50转动设于第一竖管113上，这样，当折叠三轮自行车100时，能够将把手50转动到合适的位置，以进一步减小三轮自行车100在折叠时所占用的空间。
进一步，参阅图2，三轮自行车100还包括快拆110，快拆110与第一竖管113连接且相对于第一竖管113能够在第一状态与第二状态之间切换。在快拆110处于第一状态时，快拆110允许把手50相对于第一竖管113运动；在快拆110处于第二状态时，快拆110限制把手50相对于第一竖管113运动。快拆110的设置，以便于在骑行时将把手50锁死，而安全骑行；而当三轮自行车100需要在折叠状态与展开状态之间切换时，快拆110处于第一状态，以便于把手50相对于第一竖管113运动。
把手50包括相互连接的套管51及把体52，套管51与第一竖管113套接。在快拆110处于第一状态时，快拆110允许套管51相对于第一竖管113运动；在快拆110处于第二状态时，快拆110限制套管51相对于第一竖管113运动。具体地，在快拆110处于第一状态时，快拆110允许套管51相对于第一竖管113转动及轴向运动；在处于第二状态时，快拆110限制套管51相对于第一竖管113转动及轴向运动。
一个实施例中，三轮自行车100还包括电机系统120，电机系统120安装于第二竖管123与第二主梁121形成的安装空间内，如此，能够实现人力骑行和电机助动一体化。
本申请实施例提供的三轮自行车100，工作原理如下：
从展开状态切换至折叠状态时：操作万向轮组件80使其由第一位置切换至第二位置，万向轮组件80将第二车轮30顶起，第一车轮20与万向轮81形成第二支撑面。操作手柄73，解锁第一接头71与第二接头72。在万向轮81的助力下，完成第一架体11与第二架体12的折叠。操作车箱40，带动第二车叉122相对于第一主梁111转动，第二主梁121与第一车轮20的轴线大致平行。操作快拆110，使把手50相对于第一竖管113转动及轴 向运动，以使把手50转动至合适角度，且套管51缩至第一竖管113内。
折叠状态切换至展开状态时：操作快拆110，使把手50相对于第一竖管113转动及轴向运动，把手50复位，且套管51伸出第一竖管113。操作车箱40，带动第二车叉122相对于第一主梁111转动复位。万向轮组件80仍处于第二位置，万向轮组件80将第二车轮30顶起，在万向轮81的助力下，第一架体11与第二架体12展开。操作手柄73，锁定第一接头71与第二接头72。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (15)

  1. 一种三轮自行车，其特征在于，包括：
    车架(10)，所述车架(10)包括相互连接的第一架体(11)与第二架体(12)；
    折叠器(70)，所述折叠器(70)连接所述第一架体(11)与所述第二架体(12)，所述第一架体(11)与所述第二架体(12)通过所述折叠器(70)折叠或展开；
    第一车轮(20)，两个所述第一车轮(20)装配于所述第一架体(11)上；
    第二车轮(30)，一个所述第二车轮(30)装配于所述第二架体(12)上；以及
    万向轮组件(80)，所述万向轮组件(80)装配于所述车架(10)上，能够相对于所述车架(10)运动以在第一位置与第二位置之间切换，所述万向轮组件(80)包括万向轮(81)；当所述万向轮组件(80)处于所述第一位置时，两个所述第一车轮(20)与所述第二车轮(30)三者形成支撑所述三轮自行车的第一支撑面，当所述万向轮组件(80)处于所述第二位置时，两个所述第一车轮(20)与所述万向轮(81)三者形成支撑所述三轮自行车的第二支撑面。
  2. 根据权利要求1所述的三轮自行车，其特征在于，
    所述第一架体(11)包括第一主梁(111)及第一车叉(112)，所述第一车叉(112)与所述第一主梁(111)铰接，所述第一车轮(20)与所述第一车叉(112)连接；
    所述三轮自行车还包括车箱(40)，所述车箱(40)安装于所述第一车叉(112)上；
    所述第二架体(12)包括相互连接的第二主梁(121)及第二车叉(122)，所述第二车轮(30)与所述第二车叉(122)连接；
    所述折叠器(70)连接所述第一主梁(111)与所述第二主梁(121)。
  3. 根据权利要求2所述的三轮自行车，其特征在于，
    所述第一架体(11)还包括与所述第一主梁(111)连接的第一竖管(113)；
    所述三轮自行车包括把手(50)，所述把手(50)可转动设于所述第一竖管(113)上。
  4. 根据权利要求3所述的三轮自行车，其特征在于，
    所述三轮自行车还包括快拆(110)，所述快拆(110)与所述第一竖管(113)连接且相对于所述第一竖管(113)能够在第一状态与第二状态之间切换；
    在所述快拆(110)处于所述第一状态时，所述快拆(110)允许所述把手(50)相对于所述第一竖管(113)运动；
    在所述快拆(110)处于所述第二状态时，所述快拆(110)限制所述把手(50)相对于所述第一竖管(113)运动。
  5. 根据权利要求2所述的三轮自行车，其特征在于，
    所述第二架体(12)还包括第二竖管(123)、连接管(124)及连接部(125)，所述第二竖管(123)与所述第二主梁(121)及所述第二车叉(122)均连接，所述连接管(124)与所述第二主梁(121)及所述第二竖管(123)均连接，所述连接部(125)与所述连接管(124)连接，所述万向轮组件(80)与所述连接部(125)铰接；
    所述三轮自行车还包括车座(60)，所述车座(60)安装于所述第二竖管(123)上。
  6. 根据权利要求2所述的三轮自行车，其特征在于，当所述三轮自行车处于折叠状态时，所述第一主梁(111)与所述第二主梁(121)之间呈锐角设置，且所述第一主梁(111)的延伸方向与所述第一车轮(20)的轴线的延伸方向倾斜设置。
  7. 根据权利要求1所述的三轮自行车，其特征在于，
    所述三轮自行车还包括车箱(40)，所述车箱(40)安装于所述第一架体(11)上；
    在所述三轮自行车处于展开状态时，所述车箱(40)的最低点低于所述第一车轮(20)的轴心位置。
  8. 根据权利要求1所述的三轮自行车，其特征在于，
    所述三轮自行车还包括车箱(40)，所述车箱(40)安装于所述第一架体(11)上；
    所述车箱(40)与所述第一架体(11)可拆卸连接，当所述三轮自行车处于折叠状态时，所述三轮自行车的剩余部分能够收容于所述车箱(40)内。
  9. 根据权利要求1-7任一项所述的三轮自行车，其特征在于，
    所述三轮自行车还包括铰接轴(90)，所述铰接轴(90)与所述第一架体(11)或所述第二架体(12)连接，所述万向轮组件(80)通过所述铰接轴(90)与所述第一架体(11)或所述第二架体(12)铰接；
    所述万向轮组件(80)还包括连接轴(82)、轴套(83)及弹性件(84)，所述连接轴(82)的一端与所述铰接轴(90)铰接，所述万向轮(81)的支架转动设于所述连接轴(82)的另一端；
    所述连接轴(82)的外表面凸设有限位凸起(821)，所述弹性件(84)及所述轴套(83)均套接于所述连接轴(82)外，所述弹性件(84)压缩设于所述轴套(83)与所述限位凸起(821)之间；当所述万向轮组件(80)处于所述第一位置与所述第二位置时，所述轴套(83)与所述第二架体(12)抵接限位。
  10. 根据权利要求9所述的三轮自行车，其特征在于，
    所述第二架体(12)上设有第一限位面(1251)与第二限位面(1252)；
    当所述万向轮组件(80)处于所述第一位置时，所述轴套(83)远离所述弹性件(84) 的端面与所述第一限位面(1251)抵接，限制所述万向轮组件(80)由所述第一位置切换至所述第二位置；
    当所述万向轮组件(80)处于所述第二位置时，所述轴套(83)远离所述弹性件(84)的端面与所述第二限位面(1252)抵接，限制所述万向轮组件(80)由所述第二位置切换至所述第一位置。
  11. 根据权利要求1所述的三轮自行车，其特征在于，
    所述第一架体(11)包括第一主梁(111)及第一车叉(112)，所述第一车叉(112)与所述第一主梁(111)铰接，所述第一车轮(20)与所述第一车叉(112)连接；
    所述第二架体(12)包括相互连接的第二主梁(121)及第二车叉(122)，所述第二车轮(30)与所述第二车叉(122)连接；
    所述折叠器(70)连接所述第一主梁(111)与所述第二主梁(121)。
  12. 根据权利要求11所述的三轮自行车，其特征在于，所述折叠器(70)包括第一接头(71)、第二接头(72)与手柄(73)，所述第一接头(71)与所述第二接头(72)铰接，所述手柄(73)与所述第一接头(71)或所述第二接头(72)铰接，所述第一接头(71)与所述第一主梁(111)连接，所述第二接头(72)与所述第二主梁(121)连接。
  13. 根据权利要求11所述的三轮自行车，其特征在于，当所述三轮自行车(100)处于折叠状态时，所述第二主梁(121)的延伸方向大致与所述第一车轮(20)的轴线的延伸方向平行。
  14. 根据权利要求11所述的三轮自行车，其特征在于，所述第一架体(11)还包括第一竖管(113)和斜撑管(114)，所述第一竖管(113)与所述第一主梁(111)连接，所述斜撑管(114)斜支撑于所述第一主梁(111)与所述第一竖管(113)之间。
  15. 根据权利要求11所述的三轮自行车，其特征在于，
    所述第二架体(12)还包括第二竖管(123)，所述第二竖管(123)与所述第二主梁(121)连接；
    所述三轮自行车(100)还包括电机系统(120)，所述电机系统(120)安装于所述第二竖管(123)与所述第二主梁(121)形成的安装空间内。
PCT/CN2023/108375 2022-08-04 2023-07-20 三轮自行车 WO2024027509A1 (zh)

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