WO2018039996A1 - 一种防脱落珠子链 - Google Patents

一种防脱落珠子链 Download PDF

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Publication number
WO2018039996A1
WO2018039996A1 PCT/CN2016/097595 CN2016097595W WO2018039996A1 WO 2018039996 A1 WO2018039996 A1 WO 2018039996A1 CN 2016097595 W CN2016097595 W CN 2016097595W WO 2018039996 A1 WO2018039996 A1 WO 2018039996A1
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Prior art keywords
chain
transition
transition chain
connecting member
disposed
Prior art date
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PCT/CN2016/097595
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English (en)
French (fr)
Inventor
鲁泉华
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德清集通实业有限公司
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Publication date
Application filed by 德清集通实业有限公司 filed Critical 德清集通实业有限公司
Priority to US16/493,304 priority Critical patent/US20210138854A1/en
Priority to PCT/CN2016/097595 priority patent/WO2018039996A1/zh
Publication of WO2018039996A1 publication Critical patent/WO2018039996A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B60C27/10—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables having tensioning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B60C27/062—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables provided with fastening means
    • B60C27/066—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables provided with fastening means acting on the sidewall of the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B60C27/10—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables having tensioning means
    • B60C27/12—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables having tensioning means resilient pretension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B60C27/067—Special chain layout;, i.e. distribution of chain portions over the tread, e.g. arranged in polygon pattern

Definitions

  • the present invention relates to an anti-skid device applied to a tire of a vehicle for increasing adhesion to a road covered by, for example, ice or snow, and more particularly to an anti-shedding bead chain, which can greatly improve the connection strength of the side rope and the transition chain. .
  • the invention patent of the authorization publication number CN 1017130 B, issued on June 24, 1992, discloses a skewed tire chain.
  • the side ropes and transition chains of the tire chain are connected by the gusset shown in FIG.
  • the gusset When the tire chain is assembled to the tire, the gusset is placed on the side of the tire, and the transition chain is connected to the gusset of the tire side over the tread of the tire.
  • the transition chain traverses the tire tread and is bent down on both sides to connect the gusset. Therefore, the beads provided at both ends of the transition chain are subjected to stress and upturned.
  • the buckle bead and the strip hole will have a certain degree of wear and deformation, and the wear around the buckle bead and the mounting hole is particularly significant when worn and The deformation develops to a certain extent, because the buckle bead is always in the state of being lifted up near the mounting hole in use, so it is easy to be pulled out from the gusset through the upper mounting hole, thereby causing the transition chain to fall off from the gusset. Hit and damage the car.
  • the present invention provides an anti-shedding bead chain having a high connection strength of a side rope and a transition chain based on the above technical problems.
  • An anti-shedding bead chain comprising two side ropes disposed laterally, a transition chain longitudinally disposed between the two side ropes, a connecting piece connecting the side ropes and the transition chain;
  • the connecting member includes a bonding portion that is bonded to the side surface of the tire, and a side rope mounting portion provided inside the bonding portion and a transition chain mounting portion provided outside the bonding portion, the transition chain including the end portion and the end portion a transition piece connecting member matched with the connecting member, and a slip preventing member disposed between the transition chain connecting member; wherein the transition chain mounting portion is folded upward and inward from the fitting portion by the connecting member And bending, forming a first upper limit portion projected on the bonding portion and a first side limiting portion projected on an outer side of the bonding portion; the bonding portion is provided with a mounting hole, and the mounting hole The reduced diameter forming strip hole extends from the abutting portion to at least the second side limiting portion; the transition chain connecting member includes a first limiting portion, and the first
  • the mounting hole is disposed on the abutting portion that is attached to the sidewall of the tire.
  • the mounting hole is blocked by the sidewall of the tire.
  • the transition link connector is lifted upward due to the tensile force of the transition chain attached to the tread portion of the tire, it not only has a tendency to be away from the mounting hole, but also is limited by the first upper limit portion, thereby not only effectively preventing the first
  • the limiting portion is pulled out of the connecting member by the pulling hole, and the connection between the transition chain and the connecting member is ensured to be stronger when the transition chain is subjected to a larger pulling force, thereby greatly improving the connection strength and reliability of the side rope and the transition chain. Sex.
  • the projection of the first upper limit portion on the bonding portion covers a part of the mounting hole.
  • an end of the first limiting portion protrudes from an inner side of the first upper limit portion.
  • the transition link connector further includes a second limiting portion, a connecting post, the second limiting portion is disposed at the other end of the transition chain connecting member, and the connecting post passes through the strip hole Passing through the first side limiting portion, connecting the first limiting portion and the second limiting portion.
  • the transition link connector has a circular cross section.
  • the side rope mounting portion is formed by the connecting member being bent outward from the bonding portion, forming a second upper limit portion projected on the bonding portion and projected on the bonding portion.
  • the second side limiting portion of the inner side is formed by the connecting member being bent outward from the bonding portion, forming a second upper limit portion projected on the bonding portion and projected on the bonding portion.
  • the first upper limit portion and the second upper limit portion have a space between projections on the bonding portion, and the mounting hole may be partially disposed at the spaced position on the bonding portion. .
  • the connecting member is integrally stamped from a metal plate.
  • the anti-shedding bead chain of the present invention although only the prior art connecting member is improved, has fundamentally changed the technical problem that the transition chain in the prior art is easy to fall off from the connecting member in the prior art, and significantly improves the side rope and the transition.
  • the connection strength between the chains is simple, the installation is convenient, the cost is low, and there is no need to improve the prior art side ropes and transition chains.
  • FIG. 1 is a schematic diagram of a prior art gusset connection
  • Figure 2 is a schematic view showing the expanded state of the bead chain
  • Figure 3 is a schematic view showing the assembly structure of the bead chain tire
  • Figure 4 is a schematic view showing the connection of the transition chain and the connecting member
  • Figure 5 is a schematic diagram of the transition chain structure
  • Figure 6 is a schematic plan view of the connector
  • Figure 7 is a side view of the connector
  • Figure 8 is a schematic view showing the unfolded state of the connector
  • Figure 9 is a schematic view showing the state in which the transition chain connector is unfolded.
  • an anti-shedding bead chain includes two side ropes 1 disposed laterally, and a transition chain 2 disposed in a longitudinal direction between two side ropes in a zigzag shape, and the side rope 1 and the transition chain 2 are connected by Piece 3 is connected.
  • the connector 3 includes a bonding portion 31 that is bonded to the tire side surface, a side rope mounting portion 32 that is provided inside the bonding portion 31, and a transition chain mounting portion 33 that is provided outside the bonding portion 31.
  • “inside” means a direction away from the center of the tire
  • “outside” means a direction near the center of the tire.
  • the transition chain 2 includes a steel wire rope, a steel plate rolled ball or a steel wire coil spring sleeved outside the steel wire rope, and a transition chain connecting member 21 disposed at both ends of the steel wire rope.
  • the transition link connector 21 cooperates with the transition chain mounting portion 33 to connect the transition chain 2 with the connector 3.
  • the transition chain attachment portion 33 is formed by the connector 3 bent upward and inward from the bonding portion 31 , and forms a first upper limit portion 332 projected on the bonding portion 31 and a projection projected on the outside of the bonding portion 31 .
  • the fixing portion 31 is provided with a mounting hole 331.
  • the mounting hole 331 is reduced in diameter to form a strip hole 334 extending from the bonding portion 31 to the first side limiting portion 333, and then extending from the first side limiting portion 333 to the first upper limit portion.
  • Part 332 In the present embodiment, "upper” refers to the direction away from the sidewall of the tire; “lower” refers to the direction of the sidewall of the tire.
  • the first upper limit portion 332 and the bonding portion 31 provided above and below, and the first side limiting portion 333 provided outside the bonding portion 31 form a U-shaped stopper structure.
  • the transition link connector 21 includes a thicker first limiting portion 211 and a second limiting portion 212 at both ends, and a thin connecting post 213 connecting the first limiting portion 211 and the second limiting portion 212.
  • the first limiting portion 211 is located at an end of the transition chain, and the second limiting portion 212 is adjacent to the middle of the transition chain 2 with respect to the first limiting portion 211 .
  • the aperture of the mounting hole 331 should be sufficiently large that the first limiting portion 211 can pass therethrough.
  • the strip hole 334 formed by the diameter of the mounting hole 331 should be between the connecting post 213 and the first limiting portion 211 so that the thicker first limiting portion 211 cannot pass through the strip hole 334.
  • the thinner connecting post 213 can be worn in the strip hole 334 and moved in the strip hole 334.
  • the side rope attachment portion 32 is formed by bending the connector 3 upward and outward from the bonding portion 31, and forms a second upper limit portion 321 projected on the bonding portion 31 and a second side limit projected on the inner side of the bonding portion 31. Bit 322.
  • the bonding portion 31 and the second upper limit portion 321 and the second side limiting portion 322 provided on the end side of the bonding portion 31 form a side U-shaped stopper structure.
  • the connecting member 3 is formed by punching a steel plate into a semi-finished product having the structure shown in Fig. 8, and then the two ends of the steel plate are first bent upward and further in the middle to form a state as shown in Fig. 7. Then, the side rope 1 is placed in the U-shaped limiting structure surrounded by the second upper limit portion 321 of the side rope mounting portion 32, the second side limiting portion 322 and the bonding portion 31, and the second upper limit portion 321 is disposed. The side rope 1 is restrained in the direction of the bonding portion 31, and the side string 1 is restrained between the bonding portion 31 and the side rope mounting portion 32.
  • the transition link 2 and the connecting member 3 are connected: the first limiting portion 211 of the transitional chain connecting member 21 is passed through the mounting hole 331 of the engaging portion 31, and the connecting post 213 is in the strip-shaped hole 334, and the engaging portion 31 is Moving to the first side limiting portion 333, the first limiting portion 211 is placed in the U-shaped limiting structure surrounded by the bonding portion 31, the first upper limit portion 332 and the first side limiting portion 333. The upper limit portion 332 is pressed in the direction of the bonding portion 31, and the first stopper portion 211 is restrained between the bonding portion 31 and the transition link attaching portion 33.
  • first limiting portion 211 and the second limiting portion 212 are respectively disposed on the inner side and the outer side of the first side limiting portion 333, and the connecting post 213 is connected to the first limiting portion 211 and the second limit through the strip hole 334.
  • the bit portion 212 completes the connection of the transition chain 3 to the connector 2.
  • the first upper limit portion 332 is in the fitting portion.
  • the projection on 31 can cover a part of the mounting hole 331; the end of the first limiting portion 211 can protrude from the inner side of the first upper limit portion 332.
  • the transition chain connecting member 21 is most preferably a metal buckled bead having a circular cross section. The metal plate is punched into the planar shape of Fig. 9 and then pressed onto the wire rope.
  • the first upper limit portion 332 and the second upper limit portion 321 have a space between the projections on the bonding portion 31, and at least 2/3 of the mounting hole 321 is provided at the interval on the bonding portion 31. Location.

Abstract

一种防脱落珠子链，包括横向设置的两条侧绳（1）、纵向设置在两条侧绳（1）之间的过渡链（2）、连接所述侧绳（1）和所述过渡链（2）的连接件（3）；所述连接件（3）包括用于与轮胎侧面贴合的贴合部（31），以及设于所述贴合部（31）一端的侧绳安装部（32）和设于所述贴合部（31）另一端的过渡链安装部（33），所述过渡链（2）包括设于其端部与所述连接件（3）配合的过渡链连接件（21）、设于所述过渡链连接件（21）之间的防滑件；安装孔（331）设于与轮胎侧面贴合的贴合部（31）上，当珠子链装配在轮胎上以后，安装孔（331）被轮胎侧面挡住。当过渡链连接件（21）因过渡链（2）受到附于轮胎胎面部分的拉力而向上翘起时，其不仅具有远离安装孔（331）的趋势，而且受第一限位部（211）对该连接件的限位，由此不仅有效防止第一限位部（211）受拉力作用通过安装孔（331）从连接件中拉出，而且可以保证过渡链（2）与连接件（3）、侧绳（1）之间的连接在过渡链（2）经受更大拉力时趋于更加牢固，从而大幅度提升侧绳（1）和过渡链（2）的连接强度和连接可靠性。

Description

一种防脱落珠子链 技术领域
本发明涉及应用于车辆轮胎的防滑装置，其用于增加对例如冰或雪覆盖的道路的附着力，并且尤其涉及一种防脱落珠子链，可使得其侧绳和过渡链的连接强度大大提升。
背景技术
授权公告号CN 1017130 B，授权公告日1992年6月24日的发明专利公开了一种斜形轮胎链。该轮胎链的侧绳和过渡链采用图1所示的扣板进行连接。
该轮胎链装配到轮胎上时，将扣板设于的轮胎侧面，而过渡链越过轮胎的胎面与轮胎侧面的扣板进行连接。过渡链横越过轮胎胎面并在两侧向下折弯，连接扣板。因此，设于过渡链的两端的扣珠会受到应力而上翘。伴随着轮胎链在使用过程中，扣珠与扣板之间的相互作用下，扣珠和条形孔都会有一定程度的磨损和变形，扣珠与安装孔周边的磨损尤为显著，当磨损和变形发展到一定程度，因为扣珠在使用中始终处在向上翘起顶在安装孔附近的状态，所以容易经上方的安装孔从扣板中拉出，由此造成过渡链从扣板脱落，击打并损坏汽车。
发明内容
本发明基于上述技术问题提供一种侧绳和过渡链的连接强度高的防脱落珠子链。
一种防脱落珠子链，包括横向设置的两条侧绳、纵向设置在两条侧绳之间的过渡链、连接所述侧绳和所述过渡链的连接件；所述连接件包括用于与轮胎侧面贴合的贴合部，以及设于所述贴合部内侧的侧绳安装部和设于所述贴合部外侧的过渡链安装部，所述过渡链包括设于其端部与所述连接件配合的过渡链连接件、设于所述过渡链连接件之间的防滑件；其特征在于：所述过渡链安装部由所述连接件从所述贴合部向上向内折弯而成，形成投影在所述贴合部的第一上限位部和投影在所述贴合部外侧的第一侧限位部；所述贴合部设有安装孔，且所述安装孔缩径形成条形孔由所述贴合部至少延伸至所述第二侧限位部；所述过渡链连接件包括第一限位部，所述第一限位部穿过所述安装孔后被限位于所述贴合部与所述过渡链安装部之间。
所述安装孔设于与轮胎侧墙贴合的贴合部上，当珠子链装配在轮胎上以后，安装孔被轮胎侧墙挡住。当过渡链连接件因过渡链受到附于轮胎胎面部分的拉力而向上翘起时，其不仅具有远离安装孔的趋势，而且受第一上限位部的限位，由此不仅有效防止第一限位部受拉力作用通过安装孔脱离连接件，而且可以保证过渡链与连接件的连接在过渡链经受更大拉力时趋于更加牢固，从而大幅度提升侧绳和过渡链的连接强度和可靠性。
作为优选，所述第一上限位部在所述贴合部上的投影，可覆盖所述安装孔的一部分。
作为优选，所述第一限位部的端部伸出所述第一上限位部的内侧。
作为优选，所述过渡链连接件还包括第二限位部、连接柱，所述第二限位部设于所述过渡链连接件的另一端，所述连接柱经所述条形孔穿过所述第一侧限位部，连接所述第一限位部和所述第二限位部。
作为优选，所述过渡链连接件的截面为圆形。
作为优选，所述侧绳安装部包括由所述连接件从所述贴合部向上外折弯而成，形成投影在所述贴合部的第二上限位部和投影在所述贴合部内侧的第二侧限位部。
作为优选，所述第一上限位部和所述第二上限位部在所述贴合部上的投影之间具有间隔，所述安装孔可部分设于贴合部上的所述间隔位置处。
作为优选，所述连接件为金属板一体冲压制成。
本发明的防脱落珠子链，虽然仅对现有技术的连接件进行了改进，但却根本改变了多年来现有技术中过渡链易于从连接件脱落的技术问题，显著提升了侧绳与过渡链之间的连接强度，而且结构简单，安装方便，成本低廉，无需改进现有技术的侧绳和过渡链。
附图说明
图1现有技术的扣板连接示意图；
图2珠子链展开状态示意图；
图3珠子链轮胎装配结构示意图；
图4过渡链与连接件连接示意图；
图5过渡链结构示意图；
图6连接件俯视结构示意图；
图7连接件侧视结构示意图；
图8连接件展开状态示意图；
图9过渡链连接件展开状态示意图。
具体实施方式
下面将结合附图对本实用新型的实施方式进行详细描述。
如图2，一种防脱落珠子链，包括横向设置的两条侧绳1，呈“Z”字形在纵向设置于两条侧绳之间的过渡链2，侧绳1和过渡链2通过连接件3连接。连接件3包括与轮胎侧面贴合的贴合部31，设于贴合部31内侧的侧绳安装部32和设于贴合部31外侧的过渡链安装部33。本实施例中，“内侧”是指远离轮胎圆心的方向，“外侧”是指靠近轮胎圆心的方向。
过渡链2包括钢丝绳、套在钢丝绳外的钢板卷制滚珠或者钢丝卷制弹簧、设于钢丝绳两端的过渡链连接件21。过渡链连接件21与过渡链安装部33配合，将过渡链2与连接件3连接在一起。
如图6，过渡链安装部33由连接件3从贴合部31向上向内折弯而成，形成投影在贴合部31的第一上限位部332和投影在贴合部31外侧的第一侧限位部333。贴合部31设有安装孔331，安装孔331缩径成条形孔334由贴合部31延伸至第一侧限位部333，再由第一侧限位部333延伸至第一上限位部332。本实施例中，“上”是指背离轮胎侧墙的方向；“下”是指指向或接近轮胎侧墙的方向。上、下设置的第一上限位部332和贴合部31，以及设于贴合部31外侧的第一侧限位部333,形成截面为U型的限位结构。
过渡链连接件21包括位于两端的较粗的第一限位部211和第二限位部212，以及连接第一限位部211和第二限位部212的较细的连接柱213。第一限位部211位于过渡链的端部，第二限位部212相对于第一限位部211靠近过渡链2的中间。安装孔331的孔径应该足够大，使得第一限位部211能够从其中穿过。由安装孔331缩径形成的条形孔334的大小应该介于连接柱213和第一限位部211之间，以使得较粗的第一限位部211无法穿过条形孔334，而较细的连接柱213能够穿在条形孔334中，并在条形孔334中移动。
侧绳安装部32包括由连接件3从贴合部31向上向外折弯而成，形成投影在贴合部31的第二上限位部321和投影在贴合部31内侧的第二侧限位部322。贴合部31和第二上限位部321、以及设于贴合部31端侧的第二侧限位部322形成侧面U型的限位结构。
连接件3由钢板冲压开孔制成如图8所示结构的半成品，再将该钢板的两端首先向上再向中间弯折，成图7所示状态。随后，将侧绳1放置在侧绳安装部32的第二上限位部321、第二侧限位部322和贴合部31围成的U型限位结构中，将第二上限位部321朝着贴合部31的方向压合，将侧绳1限位在贴合部31和侧绳安装部32之间。
然后连接过渡链2和连接件3：将过渡链连接件21的第一限位部211由贴合部31的穿过安装孔331，连接柱213在条形孔334中，由贴合部31移动至第一侧限位部333，使得第一限位部211置于贴合部31、第一上限位部332和第一侧限位部333围成的U型限位结构中，将第一上限位部332朝着贴合部31的方向压合，将第一限位部211限位在贴合部31和过渡链安装部33之间。此时，第一限位部211和第二限位部212分设于第一侧限位部333的内、外侧，连接柱213穿过条形孔334连接第一限位部211和第二限位部212，完成过渡链3与连接件2的连接。
为了使得过渡链2与连接件3的连接更加牢固、磨损更小，第一上限位部332在贴合部 31上的投影，可覆盖安装孔331的一部分；第一限位部211的端部可伸出第一上限位部332的内侧.过渡链连接件21最采用截面为圆形的金属制扣珠，将金属板冲压成图9的平面形状，再压合在钢丝绳上。
为了方便安装，第一上限位部332和第二上限位部321在贴合部31上的投影之间具有间隔，安装孔321的至少2/3的部分设于贴合部31上的该间隔位置处。
虽然结合附图描述了本发明的实施方式，但是本领域普通技术人员可以在所附权利要求的范围内做出各种变形或修改。

Claims (8)

  1. 一种防脱落珠子链，包括横向设置的两条侧绳(1)、纵向设置在两条侧绳(1)之间的过渡链(2)、连接所述侧绳(1)和所述过渡链(2)的连接件(3)；所述连接件(3)包括用于与轮胎侧面贴合的贴合部(31)，以及设于所述贴合部(31)一端的侧绳安装部(32)和设于所述贴合部(31)另一端的过渡链安装部(33)，所述过渡链(2)包括设于其端部与所述连接件(3)配合的过渡链连接件(21)、设于所述过渡链连接件(21)之间的防滑件；其特征在于：所述过渡链安装部(33)由所述连接件(3)从所述贴合部(31)向上向内折弯而成，形成投影在所述贴合部(31)的第一上限位部(332)和投影在所述贴合部(31)外侧的第一侧限位部(333)；所述贴合部(31)设有安装孔(331)，且所述安装孔(331)缩径形成条形孔(334)由所述贴合部(31)至少延伸至所述第一侧限位部(333)；所述过渡链连接件(21)包括第一限位部(211)，所述第一限位部(211)穿过所述安装孔(331)后被限位于所述贴合部(31)与所述过渡链安装部(33)之间。
  2. 根据权利要求1所述的一种防脱落珠子链，其特征在于：所述第一上限位部(332)在所述贴合部(31)上的投影，覆盖所述安装孔(331)的一部分。
  3. 根据权利要求2所述的一种防脱落珠子链，其特征在于：所述第一限位部(211)的端部伸出所述第一上限位部(332)的内侧。
  4. 根据权利要求1所述的一种防脱落珠子链，其特征在于：所述过渡链连接件(21)还包括第二限位部(212)、连接柱(213)，所述第二限位部(212)设于所述过渡链连接件(21)的一侧，所述连接柱(212)经所述条形孔(334)穿过所述第一侧限位部(333)，连接所述第一限位部(211)和所述第二限位部(212)。
  5. 根据权利要求1所述的一种防脱落珠子链，其特征在于：所述过渡链连接件(21)的截面为圆形。
  6. 根据权利要求1所述的一种防脱落珠子链，其特征在于：所述侧绳安装部(32)包括由所述连接件(3)从所述贴合部(31)向上向外折弯而成，形成投影在所述贴合部(31)的第二上限位部(321)和投影在所述贴合部(31)外侧的第二侧限位部(322)。
  7. 根据权利要求6所述的一种防脱落珠子链，其特征在于：所述第一上限位部(332)和所述第二上限位部(321)在所述贴合部(31)上的投影之间具有间 隔，所述安装孔(331)部分设于贴合部(31)上的所述间隔位置处。
  8. 根据权利要求1所述的一种防脱落珠子链，其特征在于：所述连接件(3)为金属板一体冲压制成。
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