WO2022143720A1 - 折叠接头及折叠车架 - Google Patents

折叠接头及折叠车架 Download PDF

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Publication number
WO2022143720A1
WO2022143720A1 PCT/CN2021/142296 CN2021142296W WO2022143720A1 WO 2022143720 A1 WO2022143720 A1 WO 2022143720A1 CN 2021142296 W CN2021142296 W CN 2021142296W WO 2022143720 A1 WO2022143720 A1 WO 2022143720A1
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WO
WIPO (PCT)
Prior art keywords
joint
handle
clamping
pressing rod
folding
Prior art date
Application number
PCT/CN2021/142296
Other languages
English (en)
French (fr)
Inventor
韩德玮
张文斌
黄东明
胡圣平
Original Assignee
深圳市美大行科技有限公司
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 深圳市美大行科技有限公司 filed Critical 深圳市美大行科技有限公司
Priority to EP21914454.0A priority Critical patent/EP4147959A4/en
Priority to JP2022572807A priority patent/JP7477818B2/ja
Priority to US17/908,539 priority patent/US20230174186A1/en
Publication of WO2022143720A1 publication Critical patent/WO2022143720A1/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
    • F16B2/185—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles using levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
    • F16B7/0426—Clamping or clipping connections for rods or tubes being coaxial for rods or for tubes without using the innerside thereof

Definitions

  • the utility model relates to the technical field of folding bicycles, in particular to a folding joint and a folding frame.
  • the folding joint generally includes a handle and two joints connecting the two sections of the vehicle tube respectively, and the handle and the joint are hinged.
  • the folding joint When the two joints are closed and pressed, the handle is rotated to the first position relative to the joint, so that the two sections of the vehicle tube are in a non-folded state, and the handle is rotated to the second position relative to the joint when the two joints are separated, so that the two sections of the vehicle tube are in a folded state.
  • a movable block or a movable snap ring is provided on the vehicle tube, and when the handle is in the first position, the movable block or the movable snap ring restricts the unexpected rotation of the handle, so as to prevent the vehicle tube from accidentally switching from the non-folded state to the folded state .
  • the movable block or the movable snap ring moves relative to the vehicle tube to release the restriction on the handle.
  • a folding joint comprising a handle, a first joint connected with a first connecting piece and a second joint connected with a second connecting piece, the handle being connected to the first joint and/or the second joint
  • the joint is hinged, and when the first joint and the second joint are in the pressing position, the handle is rotated to a first position close to the first connecting piece or the second connecting piece, and the first joint and the The handle is rotated to the second position when the second joint is in the separated position;
  • the handle includes a pressure rod and a pull buckle, the pressure rod is hinged with the first joint and/or the second joint, the pull buckle is hinged with the pressure rod, and the pull buckle is provided with a first joint.
  • a clamping part when the handle is in the first position, the first clamping part can be clamped with a second clamping part provided on the first connecting piece or the second connecting piece, constraining the first joint and the second joint in the squeezed position;
  • the pull buckle rotates relative to the pressing rod to make the first engaging portion and the second engaging portion After being separated, the buckle exerts a force on the pressing rod to drive the pressing rod to rotate.
  • the handle further includes an elastic member, and the elastic member is connected with the pressing rod and the pull buckle;
  • the elastic member when the first clamping portion is clamped with the second clamping portion, the elastic member is elastically deformed to save the force for clamping the first clamping portion and the second clamping portion. Elasticity.
  • the handle further includes a second rotating shaft, the elastic member is a torsion spring, the second rotating shaft is passed through the pressing rod and the pull buckle, and the torsion spring is sleeved is arranged outside the second rotating shaft, and one end of the torsion spring is in contact with the pull button and/or the first engaging portion, and the other end is in contact with the pressing rod;
  • the elastic member is a torsion spring
  • the second rotating shaft is passed through the pressing rod and the pull buckle
  • the torsion spring is sleeved is arranged outside the second rotating shaft, and one end of the torsion spring is in contact with the pull button and/or the first engaging portion, and the other end is in contact with the pressing rod;
  • the pull buckle can rotate around the axis of the second rotation shaft relative to the pressing rod, and the torsion spring is elastic when the first clamping part is clamped with the second clamping part Deformed to store the elastic force.
  • a first limiting portion and a second limiting portion are provided at intervals on the pressing rod, a fitting portion is provided on the pull buckle, and an assembling groove is formed through the fitting portion.
  • the matching portion is arranged between the first limiting portion and the second limiting portion, and the second rotating shaft passes through the first limiting portion, the matching portion and the second limiting portion in sequence.
  • the torsion spring is arranged in the assembling groove, and one end of the torsion spring is in contact with the first engaging portion.
  • the elastic member is an elastic sheet;
  • the pull button includes a connecting portion and an operating portion that are connected to each other, the connecting portion is hinged with the pressing rod, and the first engaging portion is provided on the On the operating portion, the elastic sheet is abutted between the operating portion and the pressing rod.
  • the pull button includes a connecting portion and an operating portion that are connected to each other, the connecting portion is hinged with the pressing rod, the first clamping portion is provided on the operating portion, and the connecting portion is connected to the operating portion.
  • a space for avoiding the pressing rod is formed between the part and the operating part;
  • the end of the hanging end of the pressing rod extends into the empty space, and the pull buckle passes through the wall of the space avoidance position. A force is applied to the pressing rod to drive the pressing rod to rotate.
  • the first clamping portion is a buckle or a clamping slot matched with the second clamping portion.
  • the first connector or the second connector is provided with a third engaging portion; the first engaging portion is engaged with the third engaging portion, and the first engaging portion is engaged with the third engaging portion.
  • the joint and the second joint are restricted to be in the separated position; wherein, in the process of switching the handle from the second position to the first position, the pull buckle rotates relative to the pressing rod to make all the After the first engaging portion is separated from the third engaging portion, the pull buckle exerts a force on the pressing rod to drive the pressing rod to rotate to the first position.
  • first joint and the second joint are hinged at one end away from the handle, the handle is hinged with one of the first joint and the second joint, and the folding joint It also includes a connecting rod, one end of the connecting rod is hinged with the handle, and the other end of the connecting rod is hinged with the other of the first joint and the second joint.
  • a folding frame comprising a first connector, a second connector and the folding joint according to any one of the above, wherein the first connector is a first vehicle tube, and the second connector is a second vehicle
  • the second clamping portion is provided on the first vehicle pipe or the second vehicle pipe.
  • the handle is provided with a first engaging portion, and when the handle is in the first position, the first engaging portion can be connected with the second engaging portion provided on the first connecting piece or the second connecting piece.
  • the first connector and the second connector are clamped in a tight position.
  • FIG. 1 is a front view of a folding bicycle frame provided by an embodiment of the present invention when it is in a non-folded state;
  • Figure 2 is an exploded view of the folding frame shown in Figure 1;
  • FIG. 3 is an exploded view of a folding frame provided by another embodiment of the present utility model
  • Figure 4 is a cross-sectional view of the folding frame shown in Figure 1;
  • FIG. 5 is an exploded view of a folding frame provided by another embodiment of the present utility model.
  • FIG. 6 is a cross-sectional view of the folding frame shown in FIG. 5 in an unfolded state
  • FIG. 7 is a cross-sectional view of the folding frame shown in FIG. 3 in an unfolded state
  • FIG. 8 is a cross-sectional view of the folding frame shown in FIG. 3 in a folded state.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.
  • the terms “installation”, “connection”, “connection”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, 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 the internal communication between two elements or the interaction between the two elements, unless otherwise clearly defined.
  • the specific meanings of the above terms in the present invention can be understood according to specific situations.
  • a first feature "on” or “under” a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact.
  • a first feature being “above”, “over” and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • an embodiment of the present invention provides a folding frame 100, including a folding joint 10, the folding joint 10 includes a handle 11, a first joint 12 and a second joint 13, the first joint 12 and the first joint 10
  • the connecting piece is connected
  • the second joint 13 is connected with the second connecting piece
  • the handle 11 is hinged with the first joint 12 and/or the second joint 13.
  • the joint 12 and/or the second joint 13 are hinged.
  • the first connecting member is the first vehicle tube 20
  • the second connecting member is the second vehicle tube 30 .
  • the handle 11 is rotated to the first position close to the first vehicle pipe 20 or the second vehicle pipe 30, at this time the first vehicle pipe 20 and the second vehicle pipe 30 are in Non-folded state; when the first joint 12 and the second joint 13 are in the separated position, the handle 11 is rotated to the second position, at this time the first vehicle tube 20 and the second vehicle tube 30 are in a folded state, that is, the folding frame 100 in a folded state.
  • the folding joint 10 may also be applied to other devices that need to be folded, which is not limited herein.
  • the handle 11 is provided with a first engaging portion 14, and when the handle 11 is in the first position, the first engaging portion 14 can be connected with the first engaging portion 14 provided on the first vehicle pipe 20 or the second vehicle pipe 30.
  • the second clamping portion 40 is clamped (refer to FIG. 4 ) to restrict the first joint 12 and the second joint 13 to be in a pressing position.
  • first joint 12 and the second joint 13 away from the handle 11 is hinged through a third rotating shaft 110 (see FIG. 3 ), and the handle 11 is hinged with one of the first joint 12 and the second joint 13 , the first joint 12
  • a first locking portion 15 is provided on the other of the second joint 13 and the handle 11 is provided with a second locking portion 16 (refer to FIG. 4 ).
  • the first locking portion 15 is locked with the second locking portion 16
  • the first locking portion 14 is locked with the second locking portion 40 .
  • the first locking portion 15 and the second locking portion 16 are in locking cooperation.
  • the first engaging portion 14 is engaged with the second engaging portion 40 .
  • the handle 11 is rotated to the second position, and the first joint 12 and the second joint 13 are in the separated position.
  • first joint 12 and the second joint 13 can also be switched between the pressing position and the separating position in other ways, which are not limited herein.
  • the handle 11 includes a pressure rod 111 and a pull buckle 112 , the pressure rod 111 is hinged with the first joint 12 , the first locking portion 15 is provided on the second joint 13 , the second The locking portion 16 is provided on the pressing rod 111 , the pull button 112 is hinged with the pressing rod 111 , the first engaging portion 14 is mounted on the pull button 112 , and the second engaging portion 40 is mounted on the second vehicle tube 30 .
  • the pull button 112 can be operably rotated relative to the pressing rod 111 so that the first engaging portion 14 is engaged with the second engaging portion 40 .
  • the pull button 112 when the handle 11 is switched from the first position to the second position, the pull button 112 is held by the hand, and after the pull button 112 rotates relative to the pressing rod 111 to separate the first engaging portion 14 from the second engaging portion 40, The buckle 112 exerts a force on the pressing rod 111 to drive the pressing rod 111 .
  • the pull button 112 includes a connecting portion and an operating portion that are connected to each other.
  • the connecting portion is hinged with the pressing rod 111 .
  • the first clamping portion 14 is provided on the operating portion.
  • the vacant position 1121 (refer to FIG. 4 and FIG. 6 ) is used to avoid interference with the pressing rod 111 when the pull buckle 112 rotates relative to the pressing rod 111 .
  • the end of the suspended end of the pressing rod 111 extends into the hollow space 1121 , and the pull button 112 exerts a force on the pressing rod 111 to rotate through the wall of the hollow space 1121 to use the first position.
  • the joint 12 is separated from the second joint 13 .
  • the handle 11 further includes an elastic member 113 .
  • the elastic member 113 is connected to the pressing rod 111 and the pull button 112 .
  • the elastic member 113 is elastically deformed to store the elastic force for clamping the first engaging portion 14 and the second engaging portion 40 .
  • the handle 11 further includes a second rotating shaft 114, the elastic member 113 is a torsion spring, the second rotating shaft 114 is passed through the pressing rod 111 and the pull button 112, the torsion spring is sleeved outside the second rotating shaft 114, and the torsion spring One end is in contact with the pull button 112 and/or the first engaging portion 14 , and the other end is in contact with the pressing rod 111 .
  • the pull button 112 can rotate relative to the pressing rod 111 around the axis of the second rotating shaft 114 .
  • the torsion spring is elastically deformed to store elastic force.
  • the first joint 12 and the second joint 13 are operated to close together, the pressing rod 111 is pressed, and the pressing rod 111 rotates.
  • the connected first engaging portion 14 is in contact with the second engaging portion 40 , and continues to press the pressing rod 111 , the pressing rod 111 exerts a force on the pull button 112 , the pull button 112 compresses the torsion spring and deforms elastically, and finally the first engaging portion 14 It is clamped with the second clamping part 40 .
  • the pressing rod 111 is provided with a first limiting portion 1111 and a second limiting portion 1112 at intervals (refer to FIG. 2 ), the pull button 112 is provided with a matching portion 1122 , and the matching portion 1122 is provided with a penetrating portion 1122 .
  • the assembling groove 1123 (refer to FIG. 5 ), the matching portion 1122 is provided between the first limiting portion 1111 and the second limiting portion 1112 , and the second rotating shaft 114 passes through the first limiting portion 1111 , the matching portion 1122 and the In the second limiting portion 1112 , the torsion spring is disposed in the assembling groove 1123 , and one end of the torsion spring is in contact with the first engaging portion 14 .
  • the arrangement of the pressing rod 111 , the pull button 112 , the second rotating shaft 114 and the torsion spring is not limited to this, nor is it limited here.
  • the first engaging portion 14 is a snap
  • the second engaging portion 40 is a snap groove (see FIG. 2 and FIG. 4 ) or a snap (see FIG. 2 and FIG. 4 ) provided on the first vehicle pipe 20 or the second vehicle pipe 30 Figure 5 and Figure 6).
  • the handle 11 is hinged with the first joint 12
  • the second clamping portion 40 is a clamping groove or a buckle provided on the second vehicle tube 30 .
  • the first engaging portion 14 may also be a card slot
  • the second engaging portion 40 may be a snap, which is not limited herein.
  • the pull button 112 is hinged with the pressing rod 111 through the second rotating shaft 114 , the elastic member 113 is an elastic sheet, and the elastic sheet abuts between the operating portion and the pressing rod 111 .
  • the elastic piece is V-shaped, and both ends of the V-shaped are respectively in contact with the operation part and the pressing rod 111 .
  • the operating portion and the pressure rod 111 are respectively provided with a first groove and a second groove, both ends of the elastic sheet are respectively provided with a first convex hull and a second convex hull, and the first convex hull is placed in the first groove.
  • the second boss is placed in the second groove, so as to ensure that the elastic sheet is firmly fixed with the operation part and the pressing rod 111 .
  • the first connector 12 or the second connector 13 is provided with a third engaging portion 17 , and the third engaging portion 17 is engaged with the first engaging portion 14 to attach the first engaging portion 17 to the first engaging portion 14 .
  • a joint 12 is restrained in a separated position from the second joint.
  • the second engaging portion 40 is connected to the second connecting member, and at this time, the third engaging portion 17 is provided on the second connector 13 .
  • the third engaging portion 17 is engaged with the first engaging portion 14 to restrict the first connector 12 and the second connector 13 to be in a separated position.
  • the third clamping portion 17 is a buckle or a clamping slot matched with the first clamping portion 14 .
  • the first connector 12 When the third engaging portion 17 is a clasp protruding from the surface of the second connector 13 , the first connector 12 is provided with an accommodating cavity 121 for accommodating the third engaging portion 17 .
  • the joint 13 is in the pressing position, the clip is accommodated in the accommodating cavity 121 , and the clip will not interfere with the pressing of the first joint 12 and the second joint 13 .
  • the pull button 112 is held by the hand. 112 exerts a force on the pressing rod 111 to drive the pressing rod 111 to rotate.
  • the folding joint further includes a connecting rod 18 , one end of the connecting rod 18 is hinged with the handle 11 , and the other end of the connecting rod is hinged with the joint of the unhinged handle 11 .
  • the handle 11 is hinged with the first joint 12
  • one end of the connecting rod 18 is hinged with the handle 11, and the other end is hinged with the second joint 13 through the fourth rotating shaft 120.
  • the first joint 12, the second joint 13, the handle 11 and the connecting rod 18 form a four-link structure.
  • the four-bar linkage structure can not only limit the first joint 12 and the second joint 13 to the pressing position; when the handle 11 is in the second position, the four-bar linkage structure It can also play the role of restricting the first joint 12 and the second joint 13 to be in a separated position.
  • the connecting rod 18 is hinged with the pressing rod 111 through the second rotating shaft 114 , that is, the pull button 112 and the connecting rod 18 share the rotating shaft.
  • the linkage 18 can be linked, which is more convenient.
  • the connecting rod 18 may also be hinged with the pressing rod 111 , which is not limited herein.
  • the folding joint 10 further includes a screw 130 , and the screw 130 is inserted through the connecting rod 18 to fixedly connect the connecting rod 18 and the fourth rotating shaft 120 .
  • the working principle of the folding frame 100 is as follows:
  • first hold the pull button 112 When operating the first joint 12 and the second joint 13 to switch from the open position to the pressing position, first hold the pull button 112 , and the pull button 112 rotates relative to the pressing rod 111 to make the first engaging portion 14 and the third engaging portion 17 To separate, operate the first joint 12 and the second joint 13 to close, and the four-link structure rotates.
  • the pressure rod 111 rotates, when the pressure rod 111 rotates to a certain position, the first clamping part 14 connected with the pull buckle 112 contacts with the second clamping part 40, continue to press the pressure rod 111, the pressure rod 111
  • the pull button 112 compresses the elastic member and elastically deforms, and finally the first engaging portion 14 is engaged with the second engaging portion 40, and the first locking portion 15 and the second locking portion 16 are locked.
  • the first clamping portion 14 is clamped with the second clamping portion 40 under the action of the elastic force of the elastic member.
  • the pull button 112 compresses the elastic member and rotates relative to the pressure rod 111, the first engaging portion 14 is separated from the second engaging portion 40, and the pull button 112 exerts a force on the pressure rod 111 to drive the pressure rod 111 to rotate.
  • the first locking portion 15 is separated from the second locking portion 16 .
  • Another embodiment of the present invention further provides a folding joint 10 included in the above-mentioned folding frame 100 , the first joint 12 of the folding joint 10 is connected with the first connecting piece, and the second joint 13 of the folding joint 10 is connected with the second joint piece connection.
  • the handle 11 When the first joint 12 and the second joint 13 are in the pressing position, the handle 11 is rotated to the first position close to the first connecting piece or the second connecting piece, and at this time the first connecting piece and the second connecting piece are in the unfolded state state; when the first joint 12 and the second joint 13 are in the separated position, the handle 11 is rotated to the second position, and the first connecting piece and the second connecting piece are in a folded state at this time.
  • the handle 11 is provided with a first engaging portion 14. When the handle 11 is in the first position, the first engaging portion 14 can be engaged with the second engaging portion 40 provided on the first connecting piece or the second connecting piece. , the first joint 12 and the second joint 13 are restricted to the pressing position.
  • the part 14 can be separated from the second engaging part 40 , which avoids repeated operation of the movable block or the movable snap ring to rotate relative to the vehicle tube in the prior art to lock and unlock the handle 11 , and is easy to operate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

一种折叠接头（10）及折叠车架（100），包括手柄（11）、与第一连接件连接的第一接头（12）及与第二连接件连接的第二接头（13），手柄与第一接头和/或第二接头铰接，第一接头与第二接头处于逼紧位置时手柄转动至第一位置，第一接头与第二接头处于分开位置时手柄转动至第二位置；手柄上设有第一卡接部（14），在手柄处于第一位置时，第一卡接部能够与第二卡接部（40）卡接，将第一接头与第二接头限制处于逼紧位置。在需要限制手柄处于第一位置时，只需要第一卡接部与第二卡接部卡接。在需要解锁对手柄的限制时，只需要使第一卡接部与第二卡接部相分离即可，避免了现有技术中重复操作活动挡块或活动卡环相对于车管转动以实现对手柄的锁定及解锁，操作简便。

Description

折叠接头及折叠车架 技术领域
本实用新型涉及折叠自行车技术领域，特别是涉及一种折叠接头及折叠车架。
背景技术
自行车作为一种代步工具，在人们的日常生活中发挥着重要作用。为了便于携带，折叠自行车出现在人们的生活中。且为了实现折叠自行车在折叠状态与非折叠状态之间切换，需要用到折叠接头。折叠接头一般包括手柄及分别连接两段车管的两个接头，手柄与接头铰接。两个接头合拢并逼紧时手柄相对于接头转动至第一位置，以使两段车管处于非折叠状态，两个接头分开时手柄相对于接头转动至第二位置，以使两段车管处于折叠状态。
一般地，在车管上设有活动挡块或活动卡环，在手柄处于第一位置时，活动挡块或活动卡环限制手柄意外转动，以防止车管意外从非折叠状态切换至折叠状态。当手柄需要从第一位置切换至第二位置时，活动挡块或活动卡环相对于车管运动以解除对手柄的限制。
但是上述锁定手柄的方式，在手柄转动至第一位置时，需要操作活动挡块或活动卡环相对于车管运动以限制手柄意外转动，在需要解除对手柄的限制时，需要再次转动活动挡块或活动卡环，操作繁琐。
实用新型内容
基于此，有必要针对传统锁放手柄的方式操作繁琐的问题，提供一种锁放手柄操作简单的折叠接头及折叠车架。
一种折叠接头，所述折叠接头包括手柄、与第一连接件连接的第一接头及与第二连接件连接的第二接头，所述手柄与所述第一接头和/或所述第二接头铰接，所述第一接头与所述第二接头处于逼紧位置时所述手柄转动至贴近所述第一连接件或所述第二连接件的第一位置，所述第一接头与所述第二接头处于分开位置时所述手柄转动至第二位置；
所述手柄包括压杆及拉扣，所述压杆与所述第一接头和/或所述第二接头铰接，所述拉扣与所述压杆铰接，所述拉扣上设有第一卡接部，在所述手柄处于所述第一位置时，所述第一卡接部能够与设于所述第一连接件或所述第二连接件上的第二卡接部卡接，将所述第一接头与所述第二接头限制处于所述逼紧位置；
其中，在所述手柄从所述第一位置向所述第二位置切换的过程中，所述拉扣相对于所述压杆转动使所述第一卡接部与所述第二卡接部分离后，所述拉扣施加作用力于所述压杆带动所述压杆转动。
在其中一个实施例中，所述手柄还包括弹性件，所述弹性件与所述压杆及所述拉扣连接；
其中，在所述第一卡接部与所述第二卡接部卡接时，所述弹性件发生弹性变形以储蓄使所述第一卡接部与所述第二卡接部卡紧的弹性力。
在其中一个实施例中，所述手柄还包括第二转动轴，所述弹性件为扭簧，所述第二 转动轴穿设于所述压杆及所述拉扣内，所述扭簧套设于所述第二转动轴外，且所述扭簧的一端与所述拉扣和/或所述第一卡接部抵接，另一端与所述压杆抵接；
其中，所述拉扣相对于所述压杆能够绕所述第二转动轴的轴线转动，在所述第一卡接部与所述第二卡接部卡接时，所述扭簧发生弹性变形以储蓄所述弹性力。
在其中一个实施例中，所述压杆上间隔设有第一限位部与第二限位部，所述拉扣上设有配合部，所述配合部上贯穿开设有装配槽，所述配合部设于所述第一限位部与所述第二限位部之间，所述第二转动轴依次穿设于所述第一限位部、所述配合部与所述第二限位部内，所述扭簧设于所述装配槽内且一端与所述第一卡接部抵接。
在其中一个实施例中，所述弹性件为弹性片；所述拉扣包括相互连接的连接部及操作部，所述连接部与所述压杆铰接，所述第一卡接部设于所述操作部上，所述弹性片抵设于所述操作部与所述压杆之间。
在其中一个实施例中，所述拉扣包括相互连接的连接部及操作部，所述连接部与所述压杆铰接，所述第一卡接部设于所述操作部上，所述连接部与所述操作部之间形成用于避空所述压杆的避空位；
其中，在所述第一卡接部与所述第二卡接部分离的过程中，所述压杆的悬空端的端部伸入所述避空位，所述拉扣通过所述避空位的壁施加作用力于所述压杆，以带动压杆转动。
在其中一个实施例中，所述第一卡接部为与所述第二卡接部相配合的卡扣或卡槽。
在其中一个实施例中，所述第一接头或所述第二接头上设有第三卡接部；所述第一卡接部与所述第三卡接部卡接，将所述第一接头与所述第二接头限制处于所述分开位置；其中，在所述手柄从所述第二位置向所述第一位置切换的过程中，所述拉扣相对于所述压杆转动使所述第一卡接部与所述第三卡接部分离后，所述拉扣施加作用力于所述压杆带动所述压杆转动第一位置。
在其中一个实施例中，所述第一接头与所述第二接头远离所述手柄的一端铰接，所述手柄与所述第一接头和所述第二接头中一者铰接，所述折叠接头还包括连杆，所述连杆的一端与所述手柄铰接，所述连杆的另一端与所述第一接头与所述第二接头中另一者铰接。
一种折叠车架，包括第一连接件、第二连接件及如上述任一项所述的折叠接头，所述第一连接件为第一车管，所述第二连接件为第二车管，所述第二卡接部开设于所述第一车管或所述第二车管上。
上述折叠接头及折叠车架，手柄上设有第一卡接部，在手柄处于第一位置时，第一卡接部能够与设于第一连接件或第二连接件上的第二卡接部卡接，将第一接头与第二接头限制处于逼紧位置。通过上述设置，在需要限制手柄于第一位置时，只需要第一卡接部与第二卡接部卡接，在需要解锁对手柄的限制时，只需要使第一卡接部与第二卡接部分离即可，避免了现有技术中重复操作活动挡块或活动卡环相对于车管转动以实现对手柄的锁定及解锁，操作简便。
附图说明
图1为本实用新型一实施例提供的折叠车架处于非折叠状态时的正视图；
图2为图1中所示的折叠车架的爆炸图；
图3为本实用新型另一实施例提供的折叠车架的爆炸图；
图4为图1中所示的折叠车架的剖视图；
图5为本实用新型又一实施例提供的折叠车架的爆炸图；
图6为图5中所示的折叠车架在处于非折叠状态时的剖视图；
图7为图3中所示的折叠车架在处于非折叠状态时的剖视图；
图8为图3中所示的折叠车架在处于折叠状态时的剖视图。
100、折叠车架；10、折叠接头；11、手柄；111、压杆；1111、第一限位部；1112、第二限位部；112、拉扣；1121、避空位；1122、配合部；1123、装配槽；113、弹性件；114、第二转动轴；12、第一接头；121、容置腔；13、第二接头；14、第一卡接部；15、第一锁紧部；16、第二锁紧部；17、第三卡接部；18、连杆；19、第一转动轴；110、第三转动轴；120、第四转动轴；130、螺钉；20、第一车管；30、第二车管；40、第二卡接部。
具体实施方式
为使本实用新型的上述目的、特征和优点能够更加明显易懂，下面结合附图对本实用新型的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本实用新型。但是本实用新型能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本实用新型内涵的情况下做类似改进，因此本实用新型不受下面公开的具体实施例的限制。
在本实用新型的描述中，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实用新型和简化描述，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实用新型的限制。
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。在本实用新型的描述中，“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。
在本实用新型中，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实用新型中的具体含义。
在本实用新型中，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及图2，本实用新型一实施例提供一种折叠车架100，包括折叠接头10，折叠接头10包括手柄11、第一接头12及第二接头13，第一接头12与第一连接件连接，第二接头13与第二连接件连接，手柄11与第一接头12和/或第二接头13铰接，具体地，手柄11通过第一转动轴19(参阅图3)与第一接头12和/或第二接头13铰接。第一接头12与第二接头13处于逼紧位置时手柄11转动至贴近第一连接件12或第二连接件13的第一位置，此时第一连接件与第二连接件处于非折叠状态；第一接头12与第二接头13处于分开位置时手柄11转动至第二位置，此时第一连接件与第二连接件处于折叠状态。
在此需要说明的是，由于折叠接头10应用于折叠车架100中，此时第一连接件为第一车管20，第二连接件为第二车管30。在第一接头12与第二接头13处于逼紧位置时手柄11转动至贴近第一车管20或第二车管30的第一位置，此时第一车管20与第二车管30处于非折叠状态；在第一接头12与第二接头13处于分开位置时手柄11转动至第二位置，此时第一车管20与第二车管30处于折叠状态，也即为折叠车架100处于折叠状态。应当理解的是，在另一些实施例中，折叠接头10还可以应用于其他需要折叠的设备中，在此不作限定。
在一个实施例中，手柄11上设有第一卡接部14，在手柄11处于第一位置时，第一卡接部14能够与设于第一车管20或第二车管30上的第二卡接部40卡接(参阅图4)，将第一接头12与第二接头13限制处于逼紧位置。通过上述设置，在需要限制手柄11处于第一位置时，只需要第一卡接部14与第二卡接部40卡接，在需要解锁对手柄11的限制，只需要使第一卡接部14与第二卡接部40分离即可，避免了现有技术中重复操作活动挡块或活动卡环相对于车管转动以实现对手柄11的锁定及解锁，操作简便。
进一步，第一接头12与第二接头13远离手柄11的一端通过第三转动轴110(参阅图3)铰接，手柄11与第一接头12和第二接头13中一者铰接，第一接头12与第二接头13中另一者上设有第一锁紧部15，手柄11上设有第二锁紧部16(参阅图4)。其中，在手柄11处于第一位置时，第一锁紧部15与第二锁紧部16锁紧配合，且第一卡接部14与第二卡接部40卡接。
也即为，在第一接头12与第二接头13处于逼紧位置时，第一锁紧部15与第二锁紧部16锁紧配合。且为了避免手柄11意外转动脱离第一位置，在手柄11处于第一位置时，第一卡接部14与第二卡接部40卡接。当第一卡接部14与第二卡接部40分离时，手柄11转动至第二位置，且第一接头12与第二接头13处于分开位置。
应当理解的是，在另一些实施例中，第一接头12与第二接头13还可以通过其他方式在逼紧位置与分开位置之间切换，在此不作限定。
继续参阅图2，在一个实施例中，手柄11包括压杆111及拉扣112，压杆111与第一接头12铰接，上述第一锁紧部15设于第二接头13上，上述第二锁紧部16设于压杆111上，拉扣112与压杆111铰接，第一卡接部14设于拉扣112上，第二卡接部40设于第二车管30上。其中， 拉扣112可操作地相对于压杆111转动使第一卡接部14与第二卡接部40卡接。
即为当手柄11从第一位置向第二位置切换的过程中，手握拉扣112，拉扣112相对于压杆111转动使第一卡接部14与第二卡接部40分离后，拉扣112施加作用力于压杆111带动压杆111。
当手柄11从第二位置切换至第一位置时，当第一锁紧部15与第二锁紧部16锁紧配合后，拉扣112相对于压杆111转动一定角度后，第一卡接部14与第二卡接部40卡接固定。
拉扣112包括相互连接的连接部与操作部，连接部与压杆111铰接，第一卡接部14设于操作部上，连接部与操作部之间形成用于避空压杆111的避空位1121(参阅图4及图6)，以避免拉扣112相对于压杆111转动时与压杆111之间产生干涉。
在手柄11从第一位置向第二位置切换的过程中，压杆111的悬空端的端部伸入避空位1121，拉扣112通过避空位1121的壁施加作用力于压杆111转动使用第一接头12与第二接头13分离。
继续参阅图2及图4，进一步，手柄11还包括弹性件113，弹性件113与压杆111及拉扣112连接，第一卡接部14与第二卡接部40卡接时，弹性件113发生弹性变形以储蓄使第一卡接部14与第二卡接部40卡紧的弹性力。通过设置弹性件113，保证第一卡接部14与第二卡接部40的紧密配合。
手柄11还包括第二转动轴114，弹性件113为扭簧，第二转动轴114穿设于压杆111及拉扣112内，扭簧套设于第二转动轴114外，且扭簧的一端与拉扣112和/或第一卡接部14抵接，另一端与压杆111抵接。其中，拉扣112相对于压杆111能够绕第二转动轴114的轴线转动，在第一卡接部14与第二卡接部40卡接时，扭簧发生弹性变形以储蓄弹性力。
当手柄11从第二位置切换至第一位置时，操作第一接头12与第二接头13合拢，按压压杆111，压杆111转动，当压杆111转动到一定位置时，与拉扣112连接的第一卡接部14与第二卡接部40接触，继续按压压杆111，压杆111施加作用力于拉扣112，拉扣112压缩扭簧弹性变形，最终第一卡接部14与第二卡接部40卡接。
在一个具体实施例中，压杆111上间隔设有第一限位部1111及第二限位部1112(参阅图2)，拉扣112上设有配合部1122，配合部1122上贯穿开设有装配槽1123(参阅图5)，配合部1122设于第一限位部1111与第二限位部1112之间，第二转动轴114依次穿设于第一限位部1111、配合部1122与第二限位部1112内，扭簧设于装配槽1123内且一端与第一卡接部14抵接。应当理解的是，在另一些实施例中，压杆111、拉扣112、第二转动轴114及扭簧的设置方式也不限于此，在此亦不作限定。
具体地，第一卡接部14为卡扣，第二卡接部40为设于第一车管20或第二车管30上的卡槽(参阅图2及图4)或卡扣(参阅图5及图6)。在一个具体实施例中，手柄11与第一接头12铰接，第二卡接部40为设于第二车管30上的卡槽或卡扣。当然，在其他一些实施例中，第一卡接部14也可以为卡槽，第二卡接部40为卡扣，在此不作限定。
参阅图3及图7，在另一实施例中，拉扣112通过第二转动轴114与压杆111铰接，弹性件113为弹性片，弹性片抵设于操作部与压杆111之间。具体地，弹性片为V字型，V字型的两端分别与操作部和压杆111抵接。更具体地，操作部与压杆111上分别设有第一凹槽与第二凹槽，弹性片的两端分别设有第一凸包与第二凸包，第一凸包容置于第一凹槽内，第二凸包容置于第二凹槽内，从而保证弹性片牢固地与操作部和压杆111固定。
参阅图7及图8，在一个实施例中，第一接头12或第二接头13上设有第三卡接部17，第三卡接部17与第一卡接部14卡接，将第一接头12与第二接头限制处于分开位置。在一个具体实施例中，第二卡接部40与第二连接件连接，此时第三卡接部17设于第二接头13上。第三卡接部17与第一卡接部14卡接，将第一接头12与第二接头13限制处于分开位置。具体地，第三卡接部17为与第一卡接部14相配合的卡扣或卡槽。当第三卡接部17为凸设于第二接头13表面的卡扣时，第一接头12上设有用于容置第三卡接部17的容置腔121，第一接头12与第二接头13处于逼紧位置，卡扣容置于容置腔121内，卡扣将不会干涉第一接头12与第二接头13的逼紧。
在手柄11从第二位置向第一位置切换的过程中，手握拉扣112，拉扣112相对于压杆111转动使第一卡接部14与第三卡接部17分离后，拉扣112施加作用力于压杆111带动压杆111转动。
继续参阅图3，在一个实施例中，折叠接头还包括连杆18，连杆18的一端与手柄11铰接，连杆的另一端与未铰接手柄11的接头铰接。具体地，手柄11与第一接头12铰接，连杆18的一端与手柄11铰接，另一端通过第四转动轴120与第二接头13铰接，此时第一接头12、第二接头13、手柄11及连杆18四者形成四连杆结构。这样，在手柄11处于第一位置时，四连杆结构不但能够起到将第一接头12与第二接头13限制处于逼紧位置的作用；在手柄11处于第二位置时，四连杆结构还能够起到将第一接头12与第二接头13限制处于分开位置的作用。
进一步，连杆18通过第二转动轴114与压杆111铰接，也即为拉扣112与连杆18共用转动轴。当手握拉扣112相对于压杆111转动时，可以使连杆18联动，较为方便。当然，在另一些实施例中，连杆18也可以与压杆111铰接，在此亦不作限定。
具体地，折叠接头10还包括螺钉130，螺钉130穿设于连杆18以将连杆18与第四转动轴120固定连接。
本实用新型具体实施例提供的折叠车架100的工作原理如下：
在第一车管20与第二车管30需要从折叠状态切换至非折叠状态时：
操作第一接头12与第二接头13从打开位置切换至逼紧位置时，首先手握拉扣112，拉扣112相对于压杆111转动使第一卡接部14与第三卡接部17分离，操作第一接头12与第二接头13合拢，四连杆结构转动。按压压杆111，压杆111转动，当压杆111转动到一定位置后，与拉扣112连接的第一卡接部14与第二卡接部40接触，继续按压压杆111，压杆111施加作用力于拉扣112，拉扣112压缩弹性件弹性变形，最终第一卡接部14与第二卡接部40卡接，第一锁紧部15与第二锁紧部16锁紧，且第一卡接部14在弹性件的弹性力作用下与第二卡接部40卡紧。
在第一车管20与第二车管30需要从非折叠状态切换至折叠状态时：
手握拉扣112，拉扣112压缩弹性件相对于压杆111转动，第一卡接部14与第二卡接部40分离，拉扣112施加作用力于压杆111带动压杆111转动使第一锁紧部15与第二锁紧部16分离。操作第一接头12与第二接头13从逼紧位置切换至打开位置，四连杆结构转动，第一卡接部14与第三卡接部17。
本实用新型另一实施例还提供一种上述折叠车架100所包括的折叠接头10，折叠接头10的第一接头12与第一连接件连接，折叠接头10的第二接头13与第二连接件连接。
在第一接头12与第二接头13处于逼紧位置时手柄11转动至贴近第一连接件或所述第二连接件的第一位置，此时第一连接件与第二连接件处于非折叠状态；在第一接头12与第二接头13处于分开位置时手柄11转动至第二位置，此时第一连接件与第二连接件处于折叠状态。手柄11上设有第一卡接部14，在手柄11处于第一位置时，第一卡接部14能够与设于第一连接件或第二连接件上的第二卡接部40卡接，将第一接头12与第二接头13限制处于逼紧位置。通过上述设置，在需要限制手柄11处于第一位置时，只需要第一卡接部14与第二卡接部40卡接，在需要解锁对手柄11的限制时，只需要使第一卡接部14与第二卡接部40相分离即可，避免了现有技术中重复操作活动挡块或活动卡环相对于车管转动以实现对手柄11的锁定及解锁，操作简便。
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实用新型的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。因此，本实用新型专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种折叠接头，其特征在于，所述折叠接头包括手柄、与第一连接件连接的第一接头及与第二连接件连接的第二接头，所述手柄与所述第一接头和/或所述第二接头铰接，所述第一接头与所述第二接头处于逼紧位置时所述手柄转动至贴近所述第一连接件或所述第二连接件的第一位置，所述第一接头与所述第二接头处于分开位置时所述手柄转动至第二位置；
    所述手柄包括压杆及拉扣，所述压杆与所述第一接头和/或所述第二接头铰接，所述拉扣与所述压杆铰接，所述拉扣上设有第一卡接部，在所述手柄处于所述第一位置时，所述第一卡接部能够与设于所述第一连接件或所述第二连接件上的第二卡接部卡接，将所述第一接头与所述第二接头限制处于所述逼紧位置；
    其中，在所述手柄从所述第一位置向所述第二位置切换的过程中，所述拉扣相对于所述压杆转动使所述第一卡接部与所述第二卡接部分离后，所述拉扣施加作用力于所述压杆带动所述压杆转动。
  2. 根据权利要求1所述的折叠接头，其特征在于，所述手柄还包括弹性件，所述弹性件与所述压杆及所述拉扣连接；
    其中，在所述第一卡接部与所述第二卡接部卡接时，所述弹性件发生弹性变形以储蓄使所述第一卡接部与所述第二卡接部卡紧的弹性力。
  3. 根据权利要求2所述的折叠接头，其特征在于，所述手柄还包括第二转动轴，所述弹性件为扭簧，所述第二转动轴穿设于所述压杆及所述拉扣内，所述扭簧套设于所述第二转动轴外，且所述扭簧的一端与所述拉扣和/或所述第一卡接部抵接，另一端与所述压杆抵接；
    其中，所述拉扣相对于所述压杆能够绕所述第二转动轴的轴线转动，在所述第一卡接部与所述第二卡接部卡接时，所述扭簧发生弹性变形以储蓄所述弹性力。
  4. 根据权利要求3所述的折叠接头，其特征在于，所述压杆上间隔设有第一限位部与第二限位部，所述拉扣上设有配合部，所述配合部上贯穿开设有装配槽，所述配合部设于所述第一限位部与所述第二限位部之间，所述第二转动轴依次穿设于所述第一限位部、所述配合部与所述第二限位部内，所述扭簧设于所述装配槽内且一端与所述第一卡接部抵接。
  5. 根据权利要求2所述的折叠接头，其特征在于，所述弹性件为弹性片；所述拉扣包括相互连接的连接部及操作部，所述连接部与所述压杆铰接，所述第一卡接部设于所述操作部上，所述弹性片抵设于所述操作部与所述压杆之间。
  6. 根据权利要求1所述的折叠接头，其特征在于，所述拉扣包括相互连接的连接部及操作部，所述连接部与所述压杆铰接，所述第一卡接部设于所述操作部上，所述连接部与所述操作部之间形成用于避空所述压杆的避空位；
    其中，在所述第一卡接部与所述第二卡接部分离的过程中，所述压杆的悬空端的端部伸入所述避空位，所述拉扣通过所述避空位的壁施加作用力于所述压杆，以带动所述压杆转动。
  7. 根据权利要求1所述的折叠接头，其特征在于，所述第一卡接部为与所述第二卡接部相配合的卡扣或卡槽。
  8. 根据权利要求1-7任一项所述的折叠接头，其特征在于，所述第一接头或所述第二接头上设有第三卡接部；所述第一卡接部与所述第三卡接部卡接，将所述第一接头与所述第 二接头限制处于所述分开位置；其中，在所述手柄从所述第二位置向所述第一位置切换的过程中，所述拉扣相对于所述压杆转动使所述第一卡接部与所述第三卡接部分离后，所述拉扣施加作用力于所述压杆带动所述压杆转动。
  9. 根据权利要求1-7任一项所述的折叠接头，其特征在于，所述第一接头与所述第二接头远离所述手柄的一端铰接，所述手柄与所述第一接头和所述第二接头中一者铰接，所述折叠接头还包括连杆，所述连杆的一端与所述手柄铰接，所述连杆的另一端与所述第一接头与所述第二接头中另一者铰接。
  10. 一种折叠车架，其特征在于，包括第一连接件、第二连接件及如权利要求1-9任一项所述的折叠接头，所述第一连接件为第一车管，所述第二连接件为第二车管，所述第二卡接部开设于所述第一车管或所述第二车管上。
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