CN2691739Y

CN2691739Y - Cross pin assembling disassembling device of chain

Info

Publication number: CN2691739Y
Application number: CN 200420044593
Authority: CN
Inventors: 王罗平
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-06
Filing date: 2004-04-06
Publication date: 2005-04-13
Anticipated expiration: 2014-04-06

Abstract

The utility model relates to a cross pin assembling and disassembling device of chain, comprising a body and a screw. One side of the body is a base body with an axial screw, and the other side is a bunting connection wall with a nick; the screw of the base body is opposite to the nick of the bunting connection wall; the screw of the base body is screwed in the front screw with a pushing and bunting column from outside; the bottom of the concave slot adjacent to the inner side surface of the bunting connection wall is provided with a bearing seat part; the right side and the left side of the bearing seat part are respectively provided with an arc strip-shaped jaw clamping part; a gap is arranged among the bearing seat part, the two jaw clamping parts and the inner end surfaces of the bunting connection wall. The bearing between the two chain blocks of the chain is positioned on the bearing seat part by the bearing seat part and the two jaw clamping parts; bearings positioned at two sides of the bearing are respectively clamped by the two arc jaw clamping parts, which makes the cross pin in the middle bearing subtend the nick or the punched hole of the bunting connection wall; the cross pin is pushed and bunted by the applied force of the pushing and bunting column positioned at the front of and pulls out for exchanging the cross pin or the damaged chain blocks, and the screw is screwed from the base body; the main body can be connected with a grab handle or a tool string, which makes the use more convenient.

Description

The pin assembling and disassembling device of chain

Technical field

The utility model provides a kind of pin assembling and disassembling device of chain, is meant especially a kind ofly to be used for stripping with the device of chain as pin on the chain of the bicycle of transmission medium or motion, amusement appliance.Its main application is the bearing for the chain interblock of bearing chain, and is gripped, and withdraws from order to do the convenient pin that each chain interblock of axle pivot is inserted in the bearing, to change chain piece or the pin that damages.

Background technology

See also shown in Figure 1, the known pin 18 that is used to strip 16 of chain pieces that constitute chain 15, be to make each other bearing 17 bearings of 16 of the chain pieces of axle pivot clip protuberance 121 and hold between the inner face of rivet holder piece 13 in two, thorn bar 142 application of forces pushing and pressing of supporting of screw rod 14 front ends that are screwed into saddle 11 outsides that are spirally connected certainly are inserted in pin 18 in the bearing 17 again, and along with continuing to rotate turn portion 141, be to make constantly displacement forward of screw rod 14, this pin 18 can be withdrawed from and the breach 131 on self-supporting rivet holder piece 13 tops drops out, the weight of other chain piece integral body that chain piece 16 both sides of damaging with replacing continue is drop-down, and the axle pivot place that makes this two chains piece 16 is to top offset, causing this pin 18 can't align with the thorn bar 142 that supports of screw rod 14 front ends, and the axle pivot place that must push this two chains piece 16 with hand, make this pin 18 align this and support thorn bar 142, and because of this screw rod 14 is to be inserted in the turn portion 141 with an instrument in addition, the beginning can make screw rod 14 be screwed into, user's both hands are to seem quite busy, and also extremely inconvenient when using; Be with, the tip device that moves back that this is known still has its impracticable part, and remains industry improvement.

The utility model content

Main purpose of the present utility model provides a kind of pin assembling and disassembling device of chain, makes the chain piece can be by firm location, and must not align in order to do the pin of chain interblock and the pushing and pressing post of screw front end, and can withdraw from pin easily with the location of auxiliary this chain piece of hand.

Secondary objective of the present utility model provides a kind of pin assembling and disassembling device of chain, can be not simultaneously in response to the thickness of link plates of chain piece, and suitable shift reciprocately is suitable for various chain.

Another purpose of the present utility model provides a kind of pin assembling and disassembling device of chain, and is more convenient when it is carried.

For reaching above-mentioned purpose, solution of the present utility model is: a kind of pin assembling and disassembling device of chain, and it is to comprise a body, and a screw rod; One side of this body is the pedestal that forms the axial screw of a tool, and side is the connecting wall that forms a tool breach in addition; It between pedestal and connecting wall the short slot that forms a depression; The screw of this pedestal is with butt the breach of wall to be relative; The screw of this pedestal is the screw rod that can be screwed into front end tool pushing and pressing post from the outside; This depression short slot bottom surface and near the connecting wall medial surface be the bearing portion that is integrally formed with; This bearing portion is the breach corresponding to connecting wall; The left and right sides of this bearing portion is the pawl folder portion of an arc bar shaped that respectively establishes in addition; Two free terminals of this pawl folder portion are up and slightly inwardly to shrink; It between the inner face of this bearing portion and two pawl folder portions and connecting wall tool one gap.

The bottom surface one of this body is formed with a hollow boss downwards, this protruding seat and screw coaxial to front and back sides be respectively to form a pertusate cannula portion inwardly; Tool one gap between two cannula portion; The nearly connecting wall place, short slot bottom surface of this body establishes a through hole that communicates with protruding seat; This bearing portion is shaped on the ring set saddle body, and the both sides of bearing portion are the pawl folder portions that respectively is provided with an arc bar shaped; This ring set seat also is provided with an axial through bore; The top of this ring set seat is that another body extends a rectangular extension board; This ring set seat is can be inserted in the through hole of body short slot bottom surface, this extension board is to be flat on the short slot bottom surface, the perforation of this ring set seat perforation then proper and this two cannula portion is positioned on the same center line, should each perforation be can be for inserting a hollow tube, and this hollow tube outer ring surface is arranged with a spring, this spring be positioned between rear side cannula portion and ring set seat and pushing and pressing ring set seat forward.

The top end face of this placing part is to be made as arc.

The bottom of this body is can be in conjunction with a lever.

But this two pawls folder portion can be made as to become with bearing portion axle pivot state and makes the folding of two pawl folder portions.

The bottom of this protruding seat can be sealed by a bottom.

The pin assembling and disassembling device of described chain also comprises a set of tools, the top of set of tools is to establish a group seat-joined, the local again shank part that extends downwards in group seat-joined bottom, a wherein side of this shank part is to be made as permeable type, then forming an accommodation chamber in this shank part, is to establish several hand-held tools by axle in this accommodation chamber; Be to be provided with a groove in this group seat-joined; Group seat-joined and screw coaxial to two relative side be each extend a pertusate cannula portion inwardly, be tool one gap between this two cannula portion; The protruding seat of this body is urgently to be embedded in the groove of group seat-joined; The perforation of this ring set seat then just is positioned on the same center line with the perforation of this two cannula portion, should each perforation be can be for inserting a hollow tube, and this hollow tube outer ring surface is arranged with a spring, and this spring is to be positioned between rear side cannula portion and ring set seat and to push against the ring set seat forward.

The centre of this short slot bottom surface is to form a concave face than large tracts of land, and these concave face both sides then form a higher ascending edge relatively, and the width of this extension board is the width that is slightly less than between this two ascending edge.

The perforation of this two cannula portion is that each can be sealed by a cock body.

The rear end of this screw rod is to establish a turn portion that enlarges.

This hollow tube is to be made as polygonal.

The bottom of this turn portion is to be provided with a polygonal groove.

The side of this set of tools is can be in addition in conjunction with a set of tools.

After adopting such scheme, the design of this bearing portion of mat and two pawl folder portions, the bearing of two chain interblocks of chain is bearable in bearing portion, the bearing that is positioned at these bearing both sides is the clamping that can be subjected to two arc pawl folder portions respectively, pin in the bearing in the middle of making aligns the breach or the perforation of connecting wall, pin then can be subjected to the screw front end that is screwed into from pedestal the pushing and pressing post application of force pushing and pressing and make it withdraw from, to change the chain piece of pin or damage; This main body more can link with a lever or set of tools, and is more convenient during in order to do use.

Description of drawings

Figure 1A is the stereo appearance figure that known chain moves back tip device;

Figure 1B is the user mode schematic diagram that known chain moves back tip device;

Fig. 2 A is the three-dimensional exploded view of first kind of embodiment of the utility model;

Fig. 2 B is the AA generalized section of Fig. 2 A;

Fig. 3 is the three-dimensional exploded view of second kind of enforcement of the utility model;

Fig. 4 is the stereo appearance figure of second kind of enforcement of the utility model;

Fig. 5 is the three-dimensional exploded view of the third enforcement of the utility model;

Fig. 6 is the stereo appearance figure of the third enforcement of the utility model;

Fig. 7 is the schematic diagram before the third enforcement of the utility model is made up with another set of tools again;

Fig. 8 is the schematic diagram after the third enforcement of the utility model is made up with another set of tools again;

Fig. 9 A, B are the user mode action schematic diagrames of the third embodiment of the utility model;

Figure 10 A is the schematic diagram of the pawl folder portion distortion of first and second kind embodiment;

Figure 10 B is the schematic diagram that the chain piece is subjected to the pawl folder portion clamping of first and second kind of the utility model embodiment;

Figure 10 C is the schematic diagram of the pawl folder portion distortion of the third embodiment;

Figure 10 D is the schematic diagram that the chain piece is subjected to the pawl folder portion clamping of the third embodiment of the utility model;

Figure 11 A, B are the section action schematic diagrames that the pawl folder portion of second kind of embodiment of the utility model can the displacement in response to the thickness of chain piece;

Figure 11 C, D are the section action schematic diagrames that the pawl folder portion of the third embodiment of the utility model can the displacement in response to the thickness of chain piece;

Figure 12 is the folding schematic diagram of the pawl folder portion of the third embodiment of the utility model;

Figure 13 A, B are novel first and second kind embodiment of this reality and the schematic diagram that combines of lever.

10 main bodys 11 saddle 12 sliding components that are spirally connected

121 clip protuberance 13 holds rivet holder piece 131 breach

14 screw rods, 141 turn portions 142 support the thorn bar

15 chains, 16 chain pieces, 161 carrier bars

17 bearings, 18 pins

20 bodies, 201 pedestals, 202 connecting walls

203 breach, 204 short slots, 205 screws

206 through holes, 207 concave faces, 208 protruding seats

2081 casing seats, 2082 perforation, 2083 casing seats

2084 perforation, 2085 grooves, 209 bottoms

21 hollow tubes, 211 pins, 22 cock bodys

23 cock bodys, 24 springs, 31 bearing portions

321 pivot seat 322 axis holes of 32 pawl folder portions

323 pivot seat 324 axis holes 334 axis holes

331 pivot seat 332 axis holes of 33 pawl folder portions

333 pivot seat 34 screw rods 341 turn portions

342 external screw threads, 343 pushing and pressing posts, 344 grooves

37 perforation of 35 ring set seats, 36 extension boards

38 axostylus axostyles, 39 axostylus axostyles, 40 set of tools

421 perforation of 41 group seat-joineds, 42 casing seats

43 casing seats, 431 perforation, 44 grooves

45 levers, 46 set of tools, 47 plates

48 plates

The specific embodiment

Understand for your juror is had further the utility model, enumerate several embodiment now, cooperate graphic, figure number, describe in detail as the back:

See also shown in Fig. 2 A, the B, it is first kind of embodiment of the present utility model, and it is to comprise a body 20, and a screw rod 34; One side of body 20 is to form without exception semicircular in shape and the pedestal 201 of tool one axial screw 205, and side is the connecting wall 202 that forms a tool one breach 203 in addition; This breach 203 is the aspects that also can be made as perforation; 202 of this pedestal 201 and connecting walls are the short slots 204 that forms a depression; The screw 205 of this pedestal 201 is to be relative with the breach 203 of connecting wall 202; The front end of screw rod 34 is pushing and pressing posts 343 that shape is dwindled in formation one, the rear end is the turn portion 341 that forms an expansion shape, the bottom face of this turn portion 341 is to establish a polygonal groove 344, but turn screw rod 34 is that body forms a bearing portion 31 on nearly connecting wall 202 inner faces in short slot 204 bottom surfaces of this body 20 for the instrument plant; The top end face of this bearing portion 31 is to be made as arc and relative with the breach 203 of connecting wall 202, and the both sides of bearing portion 31 are the pawl folder portions 32,33 that respectively form an arc strip, and the free end of this two pawls folder portion is inwardly to contract up and slightly; This bearing portion 31, two pawl folder portions the 32, the 33rd, and tool one gap between connecting wall 202 inner faces; The bottom of this body 20 is can be as shown in FIG. 13A, in conjunction with a lever 45; Please consult again Fig. 3,4 and Figure 11 A, B shown in, it is second kind of embodiment of the present utility model, the bearing portion 31 of present embodiment and two pawl folder portions the 32, the 33rd are made as with body 20 and separate; The bottom surface of this body 20 is to form down a hollow boss 208, is the cannula portion 2081,2083 that respectively extend tool perforation 2082,2084 with screw rod 34 homoaxial two relative sides in this protruding seat 208; The centre of these short slot 204 bottom surfaces is to form a concave face 207 than the large tracts of land place, makes the both sides of this concave face 207 form higher class's flange; These concave face 207 nearly connecting walls 202 inner face places be establish one with protruding seat 208 rectangular through-hole that communicate 206; This bearing portion 31 and two pawl folder portions the 32, the 33rd, one combines with the straight-flanked ring block set 35 of extending down one day, and this ring set seat 35 is that a perforation 37 is arranged; The top end face of ring set seat 35 is that one is extended an extension board 36 rectangular with ring set seat 35; This ring set seat 35 is can be inserted in the through hole 206, and extension board 36 is flat on the concave face 207, this two cannula portion 2081,8083 perforation 2082,2084 with the perforation 37 of ring set seat 35 be just on same center line, and can plant wherein for a blank pipe 21, and make each element on body 20 and the ring set seat 35 can axial displacement on hollow tube 21, the outer ring surface that this hollow tube 21 is positioned at sleeve block 35 and cannula portion 2083 is to be arranged with a spring 24, make ring set seat 35 can past cover displacement, and mat extension board 36 to be subjected to the higher ascending edge in concave face 207 both sides spacing, but make 35 straight-line displacements of ring set seat; Be to take in one in this hollow tube 21, and can two cock bodys 22,23 be sealed by the perforation 2082,2084 of this two cannula portion 2081,2083 to the standby pin 211 of number; Bottom of this protruding seat 208 is for asking attractive in appearance, be can a bottom 209 with its sealing; Please cooperate again and consult Fig. 5, shown in 6, it is the third embodiment of the present utility model, this two pawls folder portion 32, the 33rd, be made as with ring set seat 35 and separate, the inboard, bottom of this each pawl folder portion is respectively to form a circle and tool axis hole 322,332 axle pivot seat 321,331, with respect to this pivot seat 321,331 ring set seat 35 top end faces also are respectively equipped with a tool axis hole 324,334 axle pivot seat 323,333, each relative axle pivot seat 321 and 323,331 and 333, be can be respectively with an axostylus axostyle 38,39 give a pivot, make two to pounce on folder portion 32,33 can be shown in figure 12, can give folding, make when carrying more convenient; These body 20 bottoms protruding seat 208 down, in present embodiment, it is tool and screw rod 34 homoaxial front and back sides not, also are not provided with cannula portion 2081,2083; This protruding seat 208 is can be inserted in the group seat-joined 41 of a set of tools 40; The top of this set of tools 40 is group seat-joineds 41 of establishing a rectangle, and local again the extension downwards of group seat-joined 41 encloses the shank part that forms by three plate frames, and wherein, two 47,48 relative of plates then form an accommodation chamber, are that axle is established several hand-held tools in this accommodation chamber; This each hand-held tool is to produce from the saturating vacancy of this shank part; This shank part is can be shown in Fig. 7,8, again in conjunction with the set of tools 46 of another ccontaining different instruments; Be to be provided with groove 44 in this group seat-joined 41, this groove 44 is can be for body 20 with its protruding seat 208 urgent embeddings; Winding recognize 41 with screw rod 34 homoaxial two relative sides are each cannula portion 42,43 of extending tool perforation 421,431 inwardly, the perforation 421,431 of this each cannula portion 42,43 also is that the perforation 37 with ring set seat 35 is positioned on the same center line, this is respectively bored a hole in 421,37,431 is the hollow tube 21 of can planting, and the outer ring surface that the ring set seat 35 of hollow tube and cannula portion are 43 is to be arranged with a spring 24; This hollow tube 21 also can be taken in standby pin, and can cock body 22,23 be sealed by the perforation 421,431 of two cannula portion 42,43;

Please cooperate again and consult shown in Fig. 9 A, B, Figure 10 A, B, C, C, Figure 11 A, B, C, the D, the folder portion that pounces on 32,33 of each embodiment of the utility model, cause is to be made as the arc strip, itself be to omit tool plasticity, during its pressurized, be shown in Figure 10 A and Figure 10 C, to expand outwardly distortion slightly, and accumulate a reaction force simultaneously, but this two pawls folder portion 32,33 and bearing portion 31 are chain pieces 16 of two mutual pivots of clamping; Wherein, the axle pivot place of this two chains piece 16 to the folded bearing of pulling 17 in the folded carrier bar 161, be just bearable in the arched top end face of bearing portion 31, this two chains piece 16 is the outer ring surface of both sides and the bearing 171,172 at a pivot place of other chain piece in addition, be that two pawl folder portions 32,33 are exerted pressure, make two pawl folder portions, 32,33 dilatating and deformables, this two bearings 171,172 is to embed pawl folder portion 32,33 respectively, and the free-ended contraction reaction forces folder of the two pawl folder portions 32,33 that are subjected to pulls, and each bearing 17,171,172 all is positioned on the same level; Pin 18 perseverances that cause this centre are aligned with the pushing and pressing post 343 of screw rod 34 front ends, do not make and must push this pivot place with hand in addition; And through being screwed into screw rod 34, be to push against post 343 these pins 18 of pushing and pressing, make pin 18 like gradually to withdraw from, and drop out from the breach 203 of connecting wall 202; And can change the chain piece or the pin of damage; Or the chain that only will break away from, joining line again with pin; Please cooperate again and consult shown in Figure 11 A, B, C, the D, the bearing portion 31 of second and third kind of the utility model embodiment, two pawl folder portions the 32, the 33rd can be in response to carrier bar 161 thickness that constitute chain piece 16 not simultaneously, through ring set seat 35 can be on hollow tube 21 slippage and replacing of spring 21 and make gap automatically retractable adjustment between bearing portion 31, two pawl folder portions 32,33 and connecting wall 202 inner faces, the chain piece that the utility model is formed applicable to the carrier bar 161 of various different-thickness.

Claims

1, a kind of pin assembling and disassembling device of chain is characterized in that: it is to comprise a body, and a screw rod; One side of this body is the pedestal that forms the axial screw of a tool, and side is the connecting wall that forms a tool breach in addition; It between pedestal and connecting wall the short slot that forms a depression; The screw of this pedestal is with butt the breach of wall to be relative; The screw of this pedestal is the screw rod that can be screwed into front end tool pushing and pressing post from the outside; This depression short slot bottom surface and near the connecting wall medial surface be the bearing portion that is integrally formed with; This bearing portion is the breach corresponding to connecting wall; The left and right sides of this bearing portion is the pawl folder portion of an arc bar shaped that respectively establishes in addition; Two free terminals of this pawl folder portion are up and slightly inwardly to shrink; It between the inner face of this bearing portion and two pawl folder portions and connecting wall tool one gap.

2, the pin assembling and disassembling device of chain as claimed in claim 1 is characterized in that: the bottom surface one of this body is formed with a hollow boss downwards, this protruding seat and screw coaxial to front and back sides be respectively to form a pertusate cannula portion inwardly; Tool one gap between two cannula portion; The nearly connecting wall place, short slot bottom surface of this body establishes a through hole that communicates with protruding seat; This bearing portion is shaped on the ring set saddle body, and the both sides of bearing portion are the pawl folder portions that respectively is provided with an arc bar shaped; This ring set seat also is provided with an axial through bore; The top of this ring set seat is that another body extends a rectangular extension board; This ring set seat is can be inserted in the through hole of body short slot bottom surface, this extension board is to be flat on the short slot bottom surface, the perforation of this ring set seat perforation then proper and this two cannula portion is positioned on the same center line, should each perforation be can be for inserting a hollow tube, and this hollow tube outer ring surface is arranged with a spring, this spring be positioned between rear side cannula portion and ring set seat and pushing and pressing ring set seat forward.

3, the pin assembling and disassembling device of chain as claimed in claim 1 or 2, it is characterized in that: the top end face of this placing part is to be made as arc.

4, the pin assembling and disassembling device of chain as claimed in claim 1 or 2 is characterized in that: the bottom of this body is can be in conjunction with a lever.

5, the pin assembling and disassembling device of chain as claimed in claim 1 or 2 is characterized in that: but this two pawls folder portion can be made as to become with bearing portion axle pivot state and makes the folding of two pawl folder portions.

6, the pin assembling and disassembling device of chain as claimed in claim 2 is characterized in that: the bottom of this protruding seat can be sealed by a bottom.

7, the pin assembling and disassembling device of chain as claimed in claim 2, it is characterized in that: also comprise a set of tools, the top of set of tools is to establish a group seat-joined, the local again shank part that extends downwards in group seat-joined bottom, a wherein side of this shank part is to be made as permeable type, then forming an accommodation chamber in this shank part, is to establish several hand-held tools by axle in this accommodation chamber; Be to be provided with a groove in this group seat-joined; Group seat-joined and screw coaxial to two relative side be each extend a pertusate cannula portion inwardly, be tool one gap between this two cannula portion; The protruding seat of this body is urgently to be embedded in the groove of group seat-joined; The perforation of this ring set seat then just is positioned on the same center line with the perforation of this two cannula portion, should each perforation be can be for inserting a hollow tube, and this hollow tube outer ring surface is arranged with a spring, and this spring is to be positioned between rear side cannula portion and ring set seat and to push against the ring set seat forward.

8, as the pin assembling and disassembling device of claim 2 or 6 described chains, it is characterized in that: the centre of this short slot bottom surface is to form a concave face than large tracts of land, these concave face both sides then form a higher ascending edge relatively, and the width of this extension board is the width that is slightly less than between this two ascending edge.

9, as the pin assembling and disassembling device of claim 2 or 6 described chains, it is characterized in that: the perforation of this two cannula portion is that each can be sealed by a cock body.

10, as the pin assembling and disassembling device of claim 1 or 2 or 6 described chains, it is characterized in that: the rear end of this screw rod is to establish a turn portion that enlarges.

11, as the pin assembling and disassembling device of claim 1 or 2 or 6 described chains, it is characterized in that: this hollow tube is to be made as polygonal.

12, the pin assembling and disassembling device of chain as claimed in claim 9 is characterized in that: the bottom of this turn portion is to be provided with a polygonal groove.

13, the pin assembling and disassembling device of chain as claimed in claim 6 is characterized in that: the side of this set of tools is can be in addition in conjunction with a set of tools.