CN201544190U

CN201544190U - Bicycle chain detacher

Info

Publication number: CN201544190U
Application number: CN2009201774767U
Authority: CN
Inventors: 黄鸿振
Original assignee: BOOZ-ALLEN PRECISION TOOLS Co Ltd
Current assignee: BOOZ-ALLEN PRECISION TOOLS Co Ltd
Priority date: 2009-09-07
Filing date: 2009-09-07
Publication date: 2010-08-11
Anticipated expiration: 2019-09-07

Abstract

The utility model discloses a bicycle chain detacher, which comprises a main body which is provided with a screw, an assembling hole, a sliding hole communicated with the assembling hole, a movable space communicated with the assembling hole and the sliding hole and an assembling space between the screw and the assembling hole; a screw stem screwed in the screw; a rod built in the assembling hole, which is provided with a guiding part arranged in the assembling hole or the assembling space; a switching piece with a switching part and a connecting part, which slides in the sliding hole, the switching part arranged in the exterior of the sliding hole and the connecting part connected with the rod; and a spring with a first end and a second end, which is arranged in the movable space, the first end fixed in the main body and the second end connected with the rod to provide a return elasticity for the switching piece and the rod. The utility model facilitates the assembly and disassembly of the bicycle chain.

Description

Bicycle chain is torn the group device open

Technical field

The utility model relates to a kind of chain and tears the group device open, particularly relates to a kind of bicycle chain and tears the group device open.

Background technology

As shown in Figure 1, graphic for the embodiment of No. 96132305 case of TaiWan, China patent, it discloses a kind of bicycle chain and has torn the group device open, comprises that an assembling seat 11, one screw rod 12, leads a push piece 13 and a handle 14.

Described bicycle chain is torn the group device open when assembling two chain A, two chain A are cross-placed on the location protruding 111 of assembling seat 11, then will lead push piece 13 and wear the described open-work 112 of assembling seat 11, and make described guidance part 131 of leading push piece 13 wear the combination bore A1 of described two chain A one by one to position in advance, and then, the sub-B of string is placed between the promotion part 121 of described guidance part 131 of leading push piece 13 and described screw rod 12, the user grips described handle 14 on the other hand, another hand application of force is rotated described screw rod 12, make the described string B of promotion part 121 pushing and pressing, described string B pushes against the described push piece 13 of leading again and produces slippage, and described string B is placed through among the combination bore A1 of chain A.Yet described bicycle chain is torn the group device open and still have the following defective that must improve immediately in the process of assembling chain:

During assembling chain A, going here and there the two ends of sub-B installs in the promotion part 121 of screw rod 12 respectively and leads between the guidance part 131 of push piece 13, owing to lead push piece 13 only in the open-work 112 that is arranged in assembling seat 11, can move freely, can't apply a pre-aligned pushing force to described string B, therefore when assembling, except will described string B being kept the balance with hand, more necessary described handle 14 or described assembling seat 11 and the turn screw rod 12 of gripping simultaneously of user, still have any problem when therefore a people uses, so truly have necessity of improvement.

The utility model content

Technical problem to be solved in the utility model provides a kind of bicycle chain and tears the group device open, makes the assembling of chain more convenient simple and easy.

For solving the problems of the technologies described above, the utility model provides a kind of bicycle chain to tear the group device open.Comprise: a body, it has a screw, one group and establishes hole, and establish slide opening that the hole is communicated with, and establish activity space and that hole and described slide opening be communicated with at described screw and the described group of assembling space of establishing between the hole with described group with described group; One screw rod, it is arranged in described screw; One rod member, it is set in described group and establishes the hole, and described rod member has a guidance part, and described guidance part is positioned at described assembly hole or described assembling space; One dialing part, it has a clicking section and a junction, and described dialing part is slidedly arranged on described slide opening, and described clicking section is positioned at described slide opening outside, and described connecting portion connects described rod member; One shell fragment, it has one first end and one second end, and described shell fragment is mounted on described activity space, and described first end is fixedly arranged on described body, and described second end connects described rod member, so that described dialing part and rod member reseting elasticity to be provided.

The utility model mainly is the combination bore that is installed in chain by shell fragment guiding string with elastic restoring force stably, makes the assembling of chain more convenient simple and easy.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is that known bicycle chain is torn group device schematic perspective view open;

Fig. 2 is the utility model STRUCTURE DECOMPOSITION figure;

Fig. 3 is that the utility model structure is in conjunction with stereogram;

Fig. 4 is that the utility model structure is in conjunction with top view;

Fig. 5 is that the utility model structure is in conjunction with cutaway view;

Fig. 6 is the action schematic diagram that the utility model carries out the chain assembling, shows that rod member is positioned at the state that chain is disassembled ready position;

Fig. 7 is the top view of Fig. 6;

Fig. 8 is the action schematic diagram that the utility model carries out the chain assembling, shows that chain places the assembling seat and is subjected to the pre-aligned state of rod member;

Fig. 9 is the action schematic diagram that the utility model carries out the chain assembling, shows that string is positioned the state between screw rod and the rod member;

Figure 10 is the action schematic diagram that the utility model carries out the chain assembling, shows that string is positioned the state of chain;

Figure 11 is that the utility model carries out the action schematic diagram that chain is disassembled, and shows that string breaks away from the state of chain.

The specific embodiment

At first, to shown in Figure 5, a kind of bicycle chain provided by the utility model is torn the group device open, mainly is made up of a body, a screw rod 50, a rod member 60, a dialing part 70 and a shell fragment 80 as Fig. 2.

Described body is made up of an assembling seat 20 and one bonnet 30.Described assembling seat 20 has a coaxial screw 21 and establishes hole 22, and establish first groove 24 and that hole 22 and first chute 23 be communicated with at described screw 21 and the described group of assembling space of establishing between the hole 22 25 with described group of first chute 23 of establishing that hole 22 is communicated with, with described group with one group, it is protruding 251 that described assembling space has a location, obtains the location after putting for chain A.Described assembling seat 20 lower ends have integrally formed handle portion 26.Second groove 32 that described bonnet 30 has one second chute 31 and is communicated with described second chute 31, described bonnet 30 are to be locked on described assembling seat 20 by screw rod 33.Described second chute 31 defines L-shaped without exception slide opening 41 with described first chute 23, and described slide opening 41 has first wall surface of the hole 411 and second wall surface of the hole 412 of two opposite sides and dislocation mutually.Described second groove 32 defines an activity space 42 with described first groove 24.

Described screw rod 50 generally is a T shape element, has a threaded shank 51 that is arranged in described screw 21 movablely.Described threaded shank 51 1 ends are pivoted with a projectile 52, and described projectile 52 is positioned at described screw 21 or described assembling space 25.Described threaded shank 51 other ends have an operating portion 53, drive described projectile 52 and establish hole 22 directions towards the group of described assembling seat 20 and advance or retreat to control described threaded shank 51 displacements.

Described rod member 60, the group that is set in described assembling seat 20 is established hole 22 movablely.Described rod member 60 1 ends have a guidance part 61, and described guidance part 61 is positioned at described group and establishes hole 22 or described assembling space 25.Described rod member 60 other ends have the end 63 that a limiting section 62 and connects described limiting section 62.

Described dialing part 70 has a clicking section 71, and is the connecting portion 72 of pass attitude and the neck 73 of described clicking section 71 of a connection and connecting portion 72, and described dialing part 70 is to be located at described slide opening 41 slidably.Described clicking section 71 is positioned at described slide opening 41 outsides, and described connecting portion 72 is the limiting sections 62 that are articulated in described rod member 60, and described neck 73 is to first wall surface of the hole 411 that terminates in described slide opening 41 or second wall surface of the hole 412.

Described shell fragment 80, one first end 81 and with reverse setting is second end 82 of pass attitude, and described shell fragment 80 is mounted on described activity space 42.Described first end 81 is fixedly arranged on described body.Described second end 82 is the ends 63 that connect described rod member 60, and is provided with latch closure 83 in described end 63, and second end 82 of described shell fragment 80 is limited between the limiting section 62 and described latch closure 83 of described rod member 60.And described second end is the connecting portion corresponding to described dialing part 70, making described dialing part 70 be driven described rod member 60 moves towards bonnet 30 directions, by this, described shell fragment 80 is provided the reseting elasticity after described rod member 60 and dialing part 70 displacements, make described rod member 60 under mode of operation not, remain in described assembling space 25, and described dialing part 70 is under the mode of operation, its neck 73 elastic reset ground keep supporting first wall surface of the hole 411 that terminates in described slide opening 41 its guidance part 61 elastic resets.

The above is the structure and the configuration explanation thereof of each main member of the utility model embodiment.

As for the utility model embodiment tear open group mode of operation and the effect thereof of chain are described as follows, as Fig. 5 to shown in Figure 11.

When the utility model carries out the chain assembling:

As shown in Figure 5, tear the state that the group device is in inoperative open for described bicycle chain.

As shown in Figure 6, push the clicking section 71 of described dialing part 70 and it is spurred towards bonnet 30 directions, make described dialing part 70 away from first wall surface of the hole 411 of described slide opening 41 and make the guidance part 61 of described rod member 60 establish hole 22 in described group by assembling space 25 retractions of described assembling seat 20, described shell fragment 80 second ends 82 of simultaneously described rod member 60 drives towards bonnet 30 direction beats, make shell fragment 80 accumulate an elastic restoring force in activity space 42.At this moment, as shown in Figure 7,, make the neck 73 of dialing part 70 support second wall surface of the hole 412 that terminates in described slide opening 41, allow described dialing part 70 obtain temporary transient location described dialing part 70 pivots one angle.

As shown in Figure 8, two chain A that and then will be to be assembled bridge behind the location of described assembling space 25 protruding 251, control described dialing part 70, make it no longer support second wall surface of the hole 412 that ends at described slide opening 41.Described rod member 60 returns to initial position (as shown in Figure 4) with 70 elastic restoring forces by shell fragment 80 of dialing part, even the guidance part 61 of also described rod member 60 is established hole 22 by the group of described assembling seat 20 and is extend out to described assembling space 25, described guidance part 61 is set between the combination bore A1 of two chain A simultaneously, and described two chain A are positioned in advance.In addition, the neck 73 of described dialing part 70 supports first wall surface of the hole 411 that ends at described slide opening 41, allows described dialing part 70 obtain the location.

As shown in Figure 9, get a string sub-B subsequently, and described string B is placed between the guidance part 61 of the projectile 52 of described screw rod 50 and rod member 60, make this go here and there pushing force that sub-B two ends apply by described projectile 52 and guidance part 61 respectively and push against and kept balance.

As shown in figure 10, rotate the operating portion 52 of described screw rod 50, described projectile 52 is moved towards bonnet 30 directions, and then push against described string B and described rod member 60 moves to bonnet 30 directions.The described string B of relief is set in the combination bore A1 of described two chain A gradually, finishes the assembling of described chain when described string B is set in the combination bore A1 of described two chain A fully.

The combination bore A1 that the utility model not only can make the guidance part 61 of rod member 60 wear two chain A is in advance located, and can apply a pushing force in the sub-B of string under the effect of shell fragment 80, makes the sub-B of string be in poised state when the preparation group is established.So when assembling, the user can grip the handle portion 26 of described assembling seat 20 on the other hand, the operating portion 53 of the described screw rod 50 of proficiency turn, the single assembling that can finish chain A fast, nationality makes described bicycle chain tear the more convenient easy purpose of assembling that the group device carries out chain open to reach.

The utility model also can carry out the dismounting of chain, and the mode of operation difference of its mode of operation and the assembling of aforementioned chain is:

As shown in figure 10, assemble the location protruding 251 of seat 20 assembling spaces 25 and control described dialing part 70 described, dialing part 70 is no longer supported end when second wall surface of the hole of described slide opening 41 when described chain A bridges.60 of described rod members make described guidance part 61 pushing and pressing at the string B of described chain A one end by the elastic restoring force of shell fragment 80.

As shown in figure 11, the operating portion 53 of the described screw rod 50 of turn subsequently makes described projectile 52 move towards bonnet 30 directions.52 described string B of pushing and pressing of described projectile break away from the combination bore A1 of described chain A, and described string B pushes against rod member 60 simultaneously and moves to bonnet 30 directions.When breaking away from the combination bore A1 of described chain A fully, finishes described string B the dismounting of described chain A.

Claims

1. a bicycle chain is torn the group device open, it is characterized in that: comprise:

One body, it has a screw, one group and establishes hole, and establish slide opening that the hole is communicated with, and establish activity space and that hole and described slide opening be communicated with at described screw and the described group of assembling space of establishing between the hole with described group with described group;

One screw rod, it is arranged in described screw;

One rod member, it is set in described group and establishes the hole, and described rod member has a guidance part, and described guidance part is positioned at described assembly hole or described assembling space;

One dialing part, it has a clicking section and a junction, and described dialing part is slidedly arranged on described slide opening, and described clicking section is positioned at described slide opening outside, and described connecting portion connects described rod member;

One shell fragment, it has one first end and one second end, and described shell fragment is mounted on described activity space, and described first end is fixedly arranged on described body, and described second end connects described rod member, so that described dialing part and rod member reseting elasticity to be provided.

2. bicycle chain is torn the group device open according to claim 1, it is characterized in that: described body is made up of an assembling seat and a bonnet, wherein said screw, described group is established hole and described assembling space is to be located at described assembling seat, and described assembling seat has one and establishes first chute that the hole is communicated with and and establish first groove that hole and first chute are communicated with described group with described group, second groove that described bonnet has one second chute and is communicated with described second chute, described second chute and described first chute define described slide opening, and described second groove and described first recess defining go out described activity space.

3. bicycle chain is torn the group device open according to claim 1, it is characterized in that: the slide opening of described body has first wall surface of the hole and second wall surface of the hole of two opposite sides and mutual dislocation, be connected with a neck between described dialing part clicking section and the connecting portion, described neck is to terminating in described first wall surface of the hole or second wall surface of the hole.

4. bicycle chain is torn the group device open according to claim 1, it is characterized in that: described rod member has the end that a limiting section and connects described limiting section, second end of described shell fragment is the end that connects described rod member, and be provided with a latch closure in described end, second end of described shell fragment is subject between described limiting section and the described latch closure.

5. bicycle chain is torn the group device open according to claim 1, it is characterized in that: the connecting portion of described dialing part is to be hubbed at the limiting section of described rod member and corresponding to second end of described shell fragment.

6. bicycle chain is torn the group device open according to claim 1, it is characterized in that: described screw rod has a threaded shank that is arranged in described screw, described threaded shank one end is pivoted with a projectile, and described projectile is positioned at described screw or described assembling space, and the described threaded shank other end has an operating portion.