WO2016015294A1

WO2016015294A1 - Folding and locking mechanism for handlebars of foldable bicycle

Info

Publication number: WO2016015294A1
Application number: PCT/CN2014/083441
Authority: WO
Inventors: 尹国英; 詹映忠
Original assignee: 广州市锦宏机电科技发展有限公司
Priority date: 2014-07-31
Filing date: 2014-07-31
Publication date: 2016-02-04

Abstract

A folding and locking mechanism for handlebars of a foldable bicycle comprises a fixing sleeve (11), a fixing piece, pressing blocks (80), an installation base (50), a top pressing piece (40), ejection pins (70) and a drive member. A pressed surface (111) is formed on the inner surface of the fixing sleeve (11). The fixing piece at least comprises a rotary shaft part (23) penetrating the fixing sleeve. An installation gap is formed between the outer surface of the rotary shaft part and the pressed surface. The pressing blocks (80) are positioned in the installation gap and capable of moving along the radial direction of the fixing piece. The installation base (50) is fixedly arranged on the rotary shaft part, and is provided with a plurality of elongated holes (52). The top pressing piece (40) is movably sleeved on the rotary shaft part, and an outer cone surface is formed on the edge of the top pressing piece. One end of each ejection pin (70) is fixed with the corresponding pressing block, and the other end of the ejection pin (70) penetrates out of the corresponding elongated hole to form a pressed part matched with the outer cone surface. The drive member is used for driving the top pressing piece to move along the axis of the rotary shaft part, and a locking member is further arranged between the drive member and the fixing piece. The folding and locking mechanism for handlebars of a foldable bicycle can be used for realizing the locking of the handlebars in a folding state or an unfolding state without great external force.

Description

折叠车的把立收折锁紧机构技术领域 Folding car's handle folding and locking mechanism

本发明涉及折叠车技术领域，具体涉及一种折叠车把立的收折锁紧机构。背景技术 The present invention relates to the field of folding bicycles, and in particular to a folding and locking mechanism for folding a handlebar. Background technique

折叠自行车、电动车以其便携的特性，已经逐渐成为一种主流的短途交通工具，目前，折叠车的把立均是釆用铰接的方式安装在前叉或车架上，其在收折时，需要将把立向下、或向两侧收折，在把立处于收折和展开状态时，均需要利用锁紧装置将其与车架固定，使收折后的把立不会晃动或在骑行时确保把立能够正常使用。目前的折叠车上通常是釆用偏心的锁定机构将把立固定在收折状态或展开状态，以目前的折叠自行车为例，把立和前叉的断面处釆用枢轴铰接，把立和前叉断面的一侧插装有活动销轴，在把立上铰接一快拆扳手，活动销轴一端拉住前叉、另一端铰接在快拆扳手的转轴上，转动快拆扳手，其上的凸起部顶压把立，利用凸起和活动销轴共同作用将把立和前叉固定在一起。这种结构在虽然能够实现把立与前叉的固定，但是，其使用时较为不便，具体的是，锁紧时必须付出较大的力度来扳动快拆扳手。发明内容针对现有技术的不足，本发明的目的旨在于提供一种折叠车的把立收折锁紧机构，其能够在把立展开或收折时固定把立，且锁紧固定所用力度小，使用方便。 Folding bicycles and electric vehicles have gradually become a mainstream short-distance transportation because of their portable characteristics. At present, the folding arms are mounted on the front fork or the frame in an articulated manner, when folding It is necessary to fold the handle down or to the sides. When the handle is in the folded and unfolded state, it needs to be fixed with the frame by the locking device, so that the handle after the folding will not shake or Make sure the handles are working properly while riding. In the current folding bicycle, the eccentric locking mechanism is usually used to fix the handle in the folded state or the unfolded state. Taking the current folding bicycle as an example, the cross section of the front fork and the front fork are hinged and hinged. One side of the front fork section is inserted with a movable pin shaft, and a quick release wrench is attached to the upper side of the movable pin shaft, the movable pin shaft is pulled at one end of the front fork, and the other end is hinged on the rotating shaft of the quick release wrench, and the quick release wrench is rotated thereon. The raised portion is pressed against the stem, and the protrusion and the movable pin are used together to fix the stand and the front fork together. Although such a structure can realize the fixing of the stem and the front fork, it is inconvenient to use, and specifically, it is necessary to apply a large force to lock the quick-release wrench when locking. Summary of the invention In view of the deficiencies of the prior art, the object of the present invention is to provide a folding and locking mechanism for a folding vehicle, which can fix the stand when the handle is unfolded or folded, and the force for locking and fixing is small, and the use is small. Convenience.

为实现上述目的，本发明釆用如下技术方案： In order to achieve the above object, the present invention uses the following technical solutions:

折叠车的把立收折锁紧机构，包括， a folding and locking mechanism for a folding vehicle, including

固定套，其内表面形成一受压面； a fixing sleeve, the inner surface of which forms a pressure receiving surface;

固定件，其至少包括一穿接于固定套内的转轴部，转轴部的外表面与受压面之间形成一个安装间隙； The fixing member comprises at least a rotating shaft portion which is inserted into the fixing sleeve, and a mounting gap is formed between the outer surface of the rotating shaft portion and the pressure receiving surface;

位于安装间隙内且可沿固定件的径向移动的压块，压块的外表面形成与受压面相对应的顶压面； a pressing block located in the mounting gap and movable along a radial direction of the fixing member, the outer surface of the pressing block forming a pressing surface corresponding to the pressure receiving surface;

固定在转轴部上的安装座，该安装座上设置有长度方向与安装座的径向一致的长孔； a mounting seat fixed on the rotating shaft portion, wherein the mounting seat is provided with a long hole whose length direction is consistent with the radial direction of the mounting seat;

活动的套接在转轴部上的顶压件，该顶压件与安装座相对的端面边缘形成一个外锥面； The movable pressing sleeve is sleeved on the rotating shaft portion, and the pressing member forms an outer tapered surface with the end edge of the opposite end of the mounting seat;

顶销，该顶销的一端与压块固定、另一端由长孔穿出并形成一个与外锥面配合的受压部； a top pin, one end of the top pin is fixed to the pressing block, and the other end is pierced by the long hole to form a pressure receiving portion that cooperates with the outer tapered surface;

以及用于带动顶压件沿转轴部的轴线运动的驱动部件，该驱动部件与固定件之间还设置有一用于将其二者固定的锁紧部件。 And a driving member for driving the pressing member along the axis of the rotating shaft portion, and a locking member for fixing the both of the driving member and the fixing member is further disposed.

转轴部为一端开口的中空部件，驱动部件为一活动的穿接在转轴部内的轴芯，轴芯上具有径向延伸的连接杆，该连接杆穿过转轴部上的避让孔与顶压件连接。 The rotating shaft portion is a hollow member which is open at one end, and the driving member is a movable shaft core which is inserted into the rotating shaft portion, and the shaft core has a radially extending connecting rod, and the connecting rod passes through the escape hole and the pressing member on the rotating shaft portion connection.

锁紧部件由开设于轴芯外表面的外螺牙和位于转轴部内表面与外螺牙配合的内螺牙组成。 The locking member is composed of an external thread which is opened on the outer surface of the shaft core and is located on the inner surface of the shaft portion The external thread is composed of internal screw teeth.

轴芯穿出转轴部的外侧端部连接有一扣盖，该扣盖外表面设有转动扳手。 A buckle cover is connected to an outer end of the shaft core through the shaft portion, and a rotating wrench is disposed on an outer surface of the buckle cover.

安装座与顶压件相对的端面上开设有一用于避让外锥面的凹位。安装间隙内嵌置有多个压块，该多个压块在固定件的外周缘均匀分布，压块的横截面呈扇形，且相邻的两压块扇形斜边之间嵌置有一球形或圓柱形的嵌块。 A recessed surface for avoiding the outer tapered surface is formed on the end surface of the mounting seat opposite to the pressing member. a plurality of pressing blocks are embedded in the mounting gap, the plurality of pressing blocks are evenly distributed on the outer circumference of the fixing member, the cross section of the pressing block is fan-shaped, and a spherical shape is embedded between the adjacent two-shaped block fan-shaped oblique sides or Cylindrical insert.

固定件还包括两个分别固定在转轴部两端的连接块，固定套位于两连接块之间。 The fixing member further comprises two connecting blocks respectively fixed at the two ends of the rotating shaft portion, and the fixing sleeve is located between the two connecting blocks.

转轴部上设置有一台阶部、以及一卡簧，台阶部处卡装有一挡片，转轴部上固定有一位于固定套内部的连接座，安装间隙由连接座的外表面和受压面围成，连接座和安装座被限定在挡片和卡簧之间。 The shaft portion is provided with a step portion and a circlip. The step portion is provided with a blocking piece. The rotating shaft portion is fixed with a connecting seat inside the fixing sleeve. The mounting gap is surrounded by the outer surface of the connecting seat and the pressure receiving surface. The connector and the mount are defined between the flap and the retaining spring.

本发明的有益效果在于： The beneficial effects of the invention are:

本发明的上述结构中，将顶压件的轴向移动，转变为压块的径向移动，使压块上的顶压面与固定套内的受压面贴合并压紧，其无需付出较大的外力，即可实现把立在折叠状态或展开状态时的锁紧；同时，本发明可以装设在把立转动端内部，不会影响折叠车的外观，符合现有折叠车外形小巧、美观的要求。 In the above structure of the present invention, the axial movement of the pressing member is converted into the radial movement of the pressing block, and the pressing surface on the pressing block is pressed and pressed against the pressure receiving surface in the fixing sleeve, and the pressing is not required. The large external force can realize the locking when standing in the folded state or the unfolded state; at the same time, the invention can be installed inside the vertical turning end without affecting the appearance of the folding bicycle, and conforms to the compact shape of the existing folding bicycle. Aesthetic requirements.

附图说明 DRAWINGS

图 1为本发明的结构示意图; 图 2为本发明的轴向剖视图； Figure 1 is a schematic view of the structure of the present invention; Figure 2 is an axial cross-sectional view of the present invention;

图 3为图 1中卡紧件的结构示意图； Figure 3 is a schematic structural view of the clamping member of Figure 1;

图 4为图 1中安装座与顶销的配合示意图； Figure 4 is a schematic view of the cooperation between the mounting seat and the top pin of Figure 1;

图 5为图 2的 A-A剖视图，同时描述本发明的一种使用状态；图 6为本发明的另一种使用状态示意图； Figure 5 is a cross-sectional view taken along line A-A of Figure 2, and also illustrates a state of use of the present invention; Figure 6 is a schematic view of another use state of the present invention;

其中： 10、连接装置； 11、固定套； 111、受压面； 21、连接块； 11、连接块； 23、转轴部； 231、避让孔； 232、台阶部； 233、卡簧； 234、挡片； 30、轴芯； 31、连接杆； 32、扣盖； 33、转动扳手； 40、顶压件； 41、外锥面； 42、卡槽； 50、安装座； 51、凹位； 52、长孔； 53、卡紧面； 54、配合面； 60、连接座； 70、顶销； 80、压块； 801、顶压面； 81、嵌块。具体实施方式 Among them: 10, connecting device; 11, fixed sleeve; 111, pressure surface; 21, connecting block; 11, connecting block; 23, rotating shaft; 231, avoiding hole; 232, step; 233, circlip; 30; shaft core; 31, connecting rod; 32, buckle cover; 33, turning wrench; 40, pressing member; 41, outer tapered surface; 42, card slot; 50, mounting seat; 51, recessed position; 52, long hole; 53, clamping surface; 54, mating surface; 60, connecting seat; 70, top pin; 80, pressure block; 801, top pressure surface; 81, insert block. detailed description

下面，结合附图以及具体实施方式，对本发明做进一步描述：参见图 1、 2、 3、 4、 5、 6, 本发明折叠车的把立收折锁紧机构包括固定套 11、转轴部 23、多个压块 80、安装座 50、顶压件 40、与压块 80——对应的多个顶销 70、以及轴芯 30, 其中固定套 11的外部固定有一连接装置 10, 该连接装置 10用于将把立与固定套 11 固定连接，固定套 11 的内表面形成一个受压面 111, 该受压面 111 环绕于转轴部 23的周缘；转轴部 23为与前叉或车架连接的固定件的一部分，上述的转轴部 23的外表面与受压面 111之间形成一个环形的安装间隙，并且，把立相对于前叉或车架的转动轴线与转轴部 23 的中心轴线重合，上述的多个压块 80被嵌置在安装间隙内并在转轴部 23的外周缘均勾分布，并具有在转轴部 23的径向方向上运动的自由度，压块 80的外表面形成一个与受压面 111对应的顶压面 801 , 上述的受压面 111和顶压面 801可以是被加工成粗糙面，当压块 80 径向向外运动时顶压面 801 与受压面 111接触时，能够避免固定套 11与压块 80相对运动，即防止其二者相对转动。还可以是在上述转轴部 23的外部固定一位于固定套 11 内的连接座 60, 上述的安装间隙由连接座 60的外表面和受压面 111围成的，压块 80被置于连接座 60与受压面 111之间，相当于是通过连接座 60增大了转轴部 23与受压面 111对应处的直径，压块 80作为止动部件，其厚度可以利用连接座 60的半径来抵消，从而可以便于上述压块 80的嵌置安装。 The present invention will be further described with reference to the accompanying drawings and specific embodiments. Referring to Figures 1, 2, 3, 4, 5, 6, the folding and locking mechanism of the folding bicycle of the present invention comprises a fixing sleeve 11 and a shaft portion 23 a plurality of pressing blocks 80, a mounting base 50, a pressing member 40, a plurality of top pins 70 corresponding to the pressing block 80, and a shaft core 30, wherein the connecting sleeve 10 is fixed to the outside of the fixing sleeve 11, the connecting device 10 is used for fixedly connecting the stem and the fixing sleeve 11, and the inner surface of the fixing sleeve 11 forms a pressure receiving surface 111, which surrounds the circumference of the rotating shaft portion 23; the rotating shaft portion 23 is connected with the front fork or the frame A part of the fixing member forms an annular mounting gap between the outer surface of the rotating shaft portion 23 and the pressure receiving surface 111, and the bearing shaft is opposite to the rotating shaft and the rotating shaft portion 23 of the front fork or the frame. The central axes are coincident, and the plurality of pressing blocks 80 described above are embedded in the mounting gap and are distributed on the outer circumference of the rotating shaft portion 23, and have a degree of freedom of movement in the radial direction of the rotating shaft portion 23, and the pressing block 80 The outer surface forms a top pressing surface 801 corresponding to the pressure receiving surface 111. The pressure receiving surface 111 and the pressing surface 801 may be processed into a rough surface. When the pressing block 80 moves radially outward, the pressing surface 801 is formed. When in contact with the pressure receiving surface 111, it is possible to prevent the relative movement of the fixing sleeve 11 and the pressing block 80, that is, to prevent relative rotation therebetween. It is also possible to fix a connecting seat 60 in the fixing sleeve 11 outside the above-mentioned rotating shaft portion 23. The above-mentioned mounting gap is surrounded by the outer surface of the connecting seat 60 and the pressure receiving surface 111, and the pressing block 80 is placed in the connecting seat. Between 60 and the pressure receiving surface 111, the diameter corresponding to the position of the rotating shaft portion 23 and the pressure receiving surface 111 is increased by the connecting seat 60, and the pressing block 80 serves as a stopper member, and the thickness thereof can be offset by the radius of the connecting seat 60. Thus, the embedded mounting of the above-mentioned pressure block 80 can be facilitated.

顶压件 40活动的套接在转轴部 23上，该顶压件 40与安装座 50 相对的端面形成一个外锥面 41 ; 安装座 50固定在转轴部 23上，该安装座 50上设置有沿其圓周方向均勾分布的多个长孔 52 , 长孔 52 的长度方向与安装座 50的径向一致，该多个长孔 52与压块 80—— 对应，顶销 70分别将对应的压块 80和长孔 52配装，具体的是，顶销 70的一端固定的穿接在压块 80上，其另一端穿过长孔 52并形成一个受压部，该受压部抵接于外锥面 41上；轴芯 30用于拉动顶压件 40在转轴部 23的轴向上运动，当轴芯 30带动顶压件 40向着靠近安装座 50的方向移动时，外锥面 41顶压顶销 70的受压部，使顶销 70 沿长孔 52的长度向着外侧运动，从而带动压块 80的顶压面 801向着靠近受压面 111的方向移动，反之，轴芯 30带动顶压件 40向远离安装座 50的方向移动时，则压块 80的顶压面 801向着远离受压面 11 1 的方向移动，即是说，上述的外锥面 41与顶销 70的受压部配合，可将顶压件 40的轴向移动转变为各个压块 80的径向移动。 The top pressing member 40 is sleeved on the rotating shaft portion 23, and the end surface of the pressing member 40 opposite to the mounting seat 50 forms an outer tapered surface 41. The mounting base 50 is fixed on the rotating shaft portion 23, and the mounting seat 50 is provided with a plurality of long holes 52 which are hooked along the circumferential direction thereof, and the longitudinal direction of the long holes 52 coincides with the radial direction of the mounting seat 50. The plurality of long holes 52 correspond to the pressing block 80, and the top pin 70 respectively corresponds to The pressing block 80 and the long hole 52 are fitted. Specifically, one end of the top pin 70 is fixedly connected to the pressing block 80, and the other end thereof passes through the long hole 52 and forms a pressure receiving portion, and the pressure receiving portion abuts. On the outer tapered surface 41; the axial core 30 is used for pulling the pressing member 40 to move in the axial direction of the rotating shaft portion 23. When the axial core 30 drives the pressing member 40 to move toward the mounting seat 50, the outer tapered surface 41 Pressing the pressing portion of the top pin 70 causes the top pin 70 to move outward along the length of the long hole 52, thereby driving the pressing surface 801 of the pressing block 80 to move toward the pressure receiving surface 111. Conversely, the shaft core 30 drives the top. The pressing member 40 is away from the security When the mounting seat 50 moves in the direction of the mounting seat 50, the pressing surface 801 of the pressing block 80 moves in a direction away from the pressure receiving surface 11 1 , that is, the outer tapered surface 41 and the pressure receiving portion of the top pin 70 cooperate with each other. The axial movement of the pressing member 40 translates into a radial movement of each of the pressing blocks 80.

上述的转轴部 23为一端开口的中空部件，轴芯 30活动的穿接在转轴部 23中，轴芯 30上具有沿其径向延伸的连接杆 31 , 转轴部 23 上设置有避让孔 231 , 连接杆 31穿过避让孔 231伸入到顶压件 40上预设的卡槽 42中，即是说，利用连接杆 31将轴芯 30连接在一起，使顶压件 40能够随着轴芯 30沿转轴部 23的轴向移动；此外，在上述轴芯 30的外表面还开设有外螺牙，转轴部 23的内表面开设有与之配合的内螺牙，转动轴芯 30 , 即可实现轴芯 30相对于转轴部 23的轴向移动，还可以将轴芯 30锁定在其最终移动的位置，从而使顶压件 40保持在相应位置，此种情况下，可以实现压块 80位置的锁定，即锁定压块 80 , 使压块 80上的顶压面 801与受压面 111保持压紧，从而将压块 80与固定套 11锁定。 The shaft portion 23 is a hollow member that is open at one end, and the shaft core 30 is movably inserted into the shaft portion 23, and the shaft core 30 has a connecting rod 31 extending in the radial direction thereof, and the shaft portion 23 is provided with a escape hole 231. The connecting rod 31 extends through the relief hole 231 into the predetermined slot 42 of the pressing member 40, that is, the shaft core 30 is coupled together by the connecting rod 31, so that the pressing member 40 can follow the shaft core 30. Moving along the axial direction of the rotating shaft portion 23; further, an outer thread is further disposed on the outer surface of the shaft core 30, and the inner surface of the rotating shaft portion 23 is provided with an inner threaded rod, and the rotating shaft core 30 is realized. The axial movement of the shaft core 30 relative to the shaft portion 23 can also lock the shaft core 30 in its final moving position, thereby holding the pressing member 40 in the corresponding position. In this case, the position of the pressing block 80 can be realized. The locking, i.e., locking of the pressing block 80, keeps the pressing surface 801 on the pressing block 80 and the pressure receiving surface 111 pressed, thereby locking the pressing block 80 and the fixing sleeve 11.

本发明的上述方案中，转轴部 23和固定在其两端连接块 21、连接块 22形成固定件，固定件与折叠车的前叉或车架固定连接，而固定套 11则是通过连接装置 10与折叠车的折叠把立连接，当将把立转动到相应位置时，正向旋转轴芯 30 , 带动各个顶销 70沿长孔 52的长度方向向外运动，从而带动各个压块 80向外运动，当压块 80上的顶压面 801与固定套 1 1上的受压面 111充分接触后，停止旋转轴芯 30 , 此时，在不受任何外力下，由于内螺牙和外螺牙的锁紧，使顶压面 801与受压面 111之间产生一定的压力，同时，顶销 70限制了压块 80绕转轴部 23圓周方向运动的自由度，因此，在此种情况下固定套 11不会相对于压块 80转动，从而将把立与前叉或车架锁定，这种锁定不仅适用于把立处于折叠的状态，同样适用于把立处于折叠处正常骑行的展开状态。当需要松开把立时，则反向旋转轴芯 30 , 受压面 111与顶压面 801松开，使压块 80在转轴部 23的径向上具有一定的自由度。 In the above aspect of the invention, the rotating shaft portion 23 and the connecting block 21 fixed at the two ends thereof and the connecting block 22 form a fixing member, and the fixing member is fixedly connected with the front fork or the frame of the folding bicycle, and the fixing sleeve 11 is connected through the connecting device. 10 is connected with the folding handle of the folding cart. When the handle is rotated to the corresponding position, the shaft core 30 is rotated forwardly, and each of the top pins 70 is moved outward along the length of the long hole 52, thereby driving the respective pressing blocks 80 to When the pressing surface 801 on the pressing block 80 is in sufficient contact with the pressure receiving surface 111 on the fixing sleeve 11, the rotating shaft core 30 is stopped, at this time, without any external force, due to the internal thread and the outer thread The locking of the screw causes a certain pressure between the pressing surface 801 and the pressure receiving surface 111, and at the same time, the top pin 70 limits the pressure. The degree of freedom of movement of the block 80 about the circumferential direction of the shaft portion 23, therefore, in this case, the fixing sleeve 11 does not rotate relative to the pressure block 80, thereby locking the handlebar with the front fork or the frame, and this locking is not only applicable to The state in which the stand is folded is also applicable to the unfolded state in which the stand is normally in a folded position. When it is necessary to loosen the handle, the shaft core 30 is reversely rotated, and the pressure receiving surface 111 and the pressing surface 801 are loosened, so that the pressing block 80 has a certain degree of freedom in the radial direction of the rotating shaft portion 23.

当然，上述的釆用外螺牙和内螺牙锁定轴芯 30和转轴部 23的锁紧结构也可以是釆用其他锁紧部件替代，其只要能够将轴向移动的轴芯 30锁定在转轴部 23上即可，当然也可以是将轴芯 30锁定在连接块 21或连接块 22。上述的轴芯 30作为带动顶压件 40轴向移动的部件，其也可以釆用其他能够带动顶压件 40轴向移动的部件替代。 Of course, the above-mentioned locking structure of the external thread and the internal thread locking shaft core 30 and the shaft portion 23 may be replaced by other locking members as long as the axially movable shaft core 30 can be locked on the shaft. The portion 23 may be used. Of course, the shaft core 30 may be locked to the connecting block 21 or the connecting block 22. The above-mentioned shaft core 30 serves as a member for driving the axial movement of the pressing member 40, and it can also be replaced by other members capable of driving the axial movement of the pressing member 40.

为了便于操作，在上述轴芯 30穿出转轴部 23的外侧端部连接有一扣盖 32 , 该扣盖 32的外表面设置有一转动扳手 33 , 操作时，旋转转动扳手 33即可。 For the convenience of operation, a buckle cover 32 is connected to the outer end of the shaft core 30 passing through the shaft portion 23. The outer surface of the buckle cover 32 is provided with a rotary wrench 33. In operation, the rotary wrench 33 can be rotated.

安装座 50与顶压件 40相对的端面上开设有一避让外锥面 41的凹位 51 ,安装座 50的另一端面形成一与连接座 60贴合的配合面 54 , 在凹位 51的底部则形成一个卡紧面 53。凹位 51的圓周表面形成一个与外锥面 41配合的内锥面，如此，当顶压件 40向着安装座 50移动时，其能够先顶压顶销 70,安装座 50则不会干涉顶压件 40 , 同时，利用凹位 51避让顶压件 40,也可以充分的减小整个结构的轴向尺寸，使整个结构满足现有折叠车结构小巧、外形美观的要求。 The end surface of the mounting base 50 opposite to the pressing member 40 defines a recess 51 for avoiding the outer tapered surface 41. The other end surface of the mounting seat 50 forms a mating surface 54 for engaging the connecting base 60 at the bottom of the recess 51. Then a clamping surface 53 is formed. The circumferential surface of the recess 51 forms an inner tapered surface that cooperates with the outer tapered surface 41. Thus, when the pressing member 40 moves toward the mounting seat 50, it can press the top pin 70 first, and the mounting seat 50 does not interfere with the pressing. At the same time, by using the recess 51 to avoid the pressing member 40, the axial dimension of the entire structure can be sufficiently reduced, so that the entire structure satisfies the requirements of the compact and beautiful appearance of the existing folding bicycle.

为了避免受力过大、使压块 80带动顶销 70转动使顶销 70发生折弯的现象，上述的压块 80被设置为横截面呈扇形的结构，相邻两压块 80之间设置有一球形或圓柱形的嵌块 81 , 具体的是，嵌块 81 位于两压块 80扇形斜边之间。 In order to avoid excessive force, the pressing block 80 drives the top pin 70 to rotate to cause the top pin 70 to occur. In the phenomenon of bending, the above-mentioned pressing block 80 is arranged in a fan-shaped structure in cross section, and a spherical or cylindrical insert 81 is disposed between two adjacent pressing blocks 80. Specifically, the inserting block 81 is located in two pressing blocks. 80 sectors between the oblique sides.

在转轴部 23上还设置有一台阶部 232、以及一与台阶部 232具有一定间距的卡簧 233 , 卡簧 233顶压于上述的卡紧面 53上，转轴部 23的外部还设置有一位于台阶部 232处的挡片 234 , 上述的连接座 60和安装座 50被卡紧固定在挡片 234和卡簧 233之间，此结构能够最大限度的方便安装。 A step portion 232 is further disposed on the rotating shaft portion 23, and a retaining spring 233 having a certain distance from the step portion 232. The retaining spring 233 is pressed against the engaging surface 53. The outer portion of the rotating shaft portion 23 is further provided with a step. The blocking piece 234 at the portion 232, the connecting seat 60 and the mounting seat 50 described above are clamped and fixed between the blocking piece 234 and the retaining spring 233. This structure can be installed to the utmost extent.

本发明的上述结构中，将顶压件 40的轴向移动，转变为压块 80 的径向移动，使压块 80上的顶压面 801与固定套 11内的受压面 111 贴合并压紧，其无需付出较大的外力，即可实现把立在折叠状态或展开状态时的锁紧；同时，本发明可以装设在把立转动端内部，不会影响折叠车的外观，符合现有折叠车外形小巧、美观的要求。 In the above structure of the present invention, the axial movement of the pressing member 40 is converted into the radial movement of the pressing block 80, and the pressing surface 801 on the pressing block 80 is pressed against the pressure receiving surface 111 in the fixing sleeve 11. Tightly, it can realize the locking when standing in the folded state or the unfolded state without paying a large external force; meanwhile, the invention can be installed inside the vertical turning end without affecting the appearance of the folding car, conforming to the present There are requirements for the compact and beautiful appearance of the folding bicycle.

对本领域的技术人员来说，可根据以上描述的技术方案以及构思，做出其它各种相应的改变以及形变，而所有的这些改变以及形变都应该属于本发明权利要求的保护范围之内。 Various other changes and modifications may be made by those skilled in the art in light of the above-described technical solutions and modifications, and all such changes and modifications are intended to fall within the scope of the appended claims.

Claims

权利要求书 Claim

1.折叠车的把立收折锁紧机构，其特征在于，包括， 1. A folding and locking mechanism for a folding cart, characterized in that

2.如权利要求 1 所述的折叠车的把立收折锁紧机构，其特征在于，转轴部为一端开口的中空部件，驱动部件为一活动的穿接在转轴部内的轴芯，轴芯上具有径向延伸的连接杆，该连接杆穿过转轴部上的避让孔与顶压件连接。 2 . The handle folding and locking mechanism of the folding bicycle according to claim 1 , wherein the rotating shaft portion is a hollow member that is open at one end, and the driving component is a movable shaft core that is threaded in the rotating shaft portion, and the shaft core There is a radially extending connecting rod, and the connecting rod is connected to the pressing member through a relief hole on the rotating shaft portion.

3.如权利要求 2 所述的折叠车的把立收折锁紧机构，其特征在于，锁紧部件由开设于轴芯外表面的外螺牙和位于转轴部内表面与外螺牙配合的内螺牙组成。 The folding and locking mechanism for a folding vehicle according to claim 2, wherein the locking member is formed by an outer thread formed on an outer surface of the shaft core and an inner surface of the shaft portion and the outer thread The composition of the thread.

4.如权利要求 3 所述的折叠车的把立收折锁紧机构，其特征在于，轴芯穿出转轴部的外侧端部连接有一扣盖，该扣盖外表面设有转动扳手。 4. The folding and locking mechanism for a folding vehicle according to claim 3, wherein The outer end of the shaft core passing through the shaft portion is connected with a buckle cover, and the outer surface of the buckle cover is provided with a rotary wrench.

5.如权利要求 1 所述的折叠车的把立收折锁紧机构，其特征在于，安装座与顶压件相对的端面上开设有一用于避让外锥面的凹位。 The folding and locking mechanism for a folding cart according to claim 1, wherein a recessed portion for avoiding the outer tapered surface is formed on an end surface of the mounting seat opposite to the pressing member.

6.如权利要求 1 所述的折叠车的把立收折锁紧机构，其特征在于，安装间隙内嵌置有多个压块，该多个压块在固定件的外周缘均匀分布，压块的横截面呈扇形，且相邻的两压块扇形斜边之间嵌置有一球形或圓柱形的嵌块。 6 . The folding and locking mechanism of the folding vehicle according to claim 1 , wherein a plurality of pressing blocks are embedded in the mounting gap, and the plurality of pressing blocks are evenly distributed on the outer circumference of the fixing member, and the pressure is evenly distributed. The cross-section of the block is fan-shaped, and a spherical or cylindrical insert is embedded between the adjacent two-cylinder fan-shaped oblique sides.

7.如权利要求 1 所述的折叠车的把立收折锁紧机构，其特征在于，固定件还包括两个分别固定在转轴部两端的连接块，固定套位于两连接块之间。 The folding and locking mechanism of the folding vehicle according to claim 1, wherein the fixing member further comprises two connecting blocks respectively fixed to the two ends of the rotating shaft portion, and the fixing sleeve is located between the two connecting blocks.

8.如权利要求 1 所述的折叠车的把立收折锁紧机构，其特征在于，转轴部上设置有一台阶部、以及一卡簧，台阶部处卡装有一挡片，转轴部上固定有一位于固定套内部的连接座，安装间隙由连接座的外表面和受压面围成，连接座和安装座被限定在挡片和卡簧之间。 The folding and locking mechanism of the folding vehicle according to claim 1, wherein the rotating shaft portion is provided with a step portion and a circlip, and the step portion is provided with a blocking piece, and the rotating shaft portion is fixed There is a connecting seat inside the fixing sleeve, and the mounting gap is surrounded by the outer surface of the connecting seat and the pressing surface, and the connecting seat and the mounting seat are defined between the blocking piece and the retaining spring.