CN201547183U - Single-leg fast-clamping type chain piece structure - Google Patents
Single-leg fast-clamping type chain piece structure Download PDFInfo
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- CN201547183U CN201547183U CN200920153434XU CN200920153434U CN201547183U CN 201547183 U CN201547183 U CN 201547183U CN 200920153434X U CN200920153434X U CN 200920153434XU CN 200920153434 U CN200920153434 U CN 200920153434U CN 201547183 U CN201547183 U CN 201547183U
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- sheet
- outer chain
- chain sheet
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Abstract
The utility model discloses a single-leg fast-clamping type chain piece structure, which is characterized in that a first outer chain piece and a second outer chain piece are respectively provided with a first perforation hole, a first clamping hole, a second perforation hole and a second clamping hole; the first clamping hole and the second clamping hole extend reversely to be communicated with a first extension groove, a second extension groove, a first fastening groove and a second fastening groove; and the positions of the wall surfaces, where the first clamping hole and the second clamping hole are communicated with the first fastening groove and the second fastening groove, are formed with at least one first clamping block and a second clamping block. The chain piece structure can lead two inner chain pieces and the first outer chain piece and the second outer chain piece to only generate fine gaps after chains are clamped, lead the distance of the two adjacent inner chain pieces of the chains to be less than 2.3mm, and can prevent a first chain shaft and a second chain shaft from separating from the second clamping hole and the first clamping hole and ensure the safety of the chains on use.
Description
Technical field
The utility model is constructed relevant for the fast cassette chain of a kind of single pin sheet, be meant especially after the chain engaging, only can produce trickle gap between two inner chain sheets and first outer chain sheet and second outer chain sheet, and make spacing between the two adjacent inner chain sheets of chain less than 2.3mm, can prevent that first chain rivet and second chain rivet from can not snap in hole and first by second and snapping in the hole and deviate from, to guarantee chain Security in the use.
Background technique
At present common chain configurations, the interior prior art of being addressed of specification of I276751 number " chain sheet of chain " patent case of main as TaiWan, China bulletin on March 21st, 2007, its exposure has a kind of known chain joint construction, please refer to Fig. 9 and shown in Figure 10, it mainly is to establish respectively to be combined into a serial connection unit A into two chain roller A2 and two chain rivet A3 are arranged between two inner chain sheet A1, be connected in series unit A to form a chain configurations in conjunction with several again, between the serial connection unit at chain two ends A, then need cooperate chain rivet A3 to wear and fixedly carry out combination with two relative outer chain sheet B, wherein the end of chain rivet A3 is provided with fixing part A31, the other end then is provided with a buckling part A32, this buckling part A32 then continues and is connected with the less neck A33 of a diameter, two outer chain sheet B are provided with perforation B1 again, and one and the perforation B1 between left and right every fastening hole B2, its middle punch B1 is fixed in wherein for the fixing part A31 of chain rivet A3, again this fastening hole B2 be provided with a large-diameter portion B21 that can stretch through for buckling part A32 and with large-diameter portion B21 adjacency tangent and width less than the minor diameter part B22 of buckling part A32, and the width of this minor diameter part B22 is greater than the neck A33 of chain rivet A3, the periphery ring of this minor diameter part B22 is around being concaved with a slip plane B23 again, this two outer chain sheet B is 8 fonts again, is formed with reentrant part B3 at the two side waists of two outer chain sheet B.
During assembling, please refer to Fig. 9 and shown in Figure 10, spacing G between the two adjacent inner chain sheet A1 is 2.36mm, must produce a bigger clearance D between inner chain sheet A1 after assembling is finished on the serial connection unit A and the contiguous outer chain sheet B, relatively move so be easy to generate between chain rivet A3 and the outer chain sheet B, in case when producing the oblique pulling force towards perforation B1 direction when chain rivet A3 this moment being subjected to speed change again, then its chain rivet A3 promptly can move towards the direction of perforation B1 and come off, and can produce bigger collision, wearing and tearing and collision noise in the process of transmission or speed change.
In view of this, the design people studies improvement at present chain sheet structure, and this case produces thus.
The model utility content
Main purpose of the present utility model, be to provide the fast cassette chain of a kind of single pin sheet structure, after it can make the chain engaging, only can produce trickle gap between two inner chain sheets and first outer chain sheet and second outer chain sheet, and make spacing between the two adjacent inner chain sheets of chain less than 2.3mm, can prevent that first chain rivet and second chain rivet from can not snap in hole and first by second and snapping in the hole and deviate from, guarantee chain Security in the use.
In order to reach above-mentioned purpose, solution of the present utility model is:
The fast cassette chain of a kind of single pin sheet structure includes one first outer chain sheet and one second outer chain sheet; First outer chain sheet is provided with one first perforation and adjacent first and snaps in the hole, this first snaps in the hole and oppositely extends to both sides and be communicated with first telescopic chute and first buckling groove, wherein this first telescopic chute position is near first perforation, the first buckling groove position is then away from first perforation, and first buckling groove in this first periphery wall upper edge that snaps in the hole and be concaved with first slip plane, and snap in the wall position that the hole is communicated with first buckling groove in first and form at least one first clipping block in opposite directions, the first perforation internal fixation at first outer chain sheet has one first chain rivet in addition, this first chain rivet, one end is provided with first buckling part, and this first buckling part then continues and is connected with first neck of a diameter less than first buckling part; Second outer chain sheet is identical with the first outer chain sheet shape, and with the corresponding engaging of this first outer chain sheet, this second outer chain sheet is provided with one second perforation and adjacent second and snaps in the hole, this second snaps in the hole and oppositely extends to both sides and be communicated with second telescopic chute and second buckling groove, wherein the position of this second telescopic chute is near second perforation, the position of second buckling groove is then away from second perforation, and second buckling groove in this second periphery wall upper edge that snaps in the hole and be concaved with second slip plane, and snap in the wall position that the hole is communicated with second buckling groove in second and form at least one second clipping block in opposite directions, the second perforation internal fixation in this second outer chain sheet has one second chain rivet in addition, one end of this second chain rivet is provided with second buckling part, and this second buckling part then continues and is connected with second neck of a diameter less than second buckling part.
Above-mentioned first clipping block is the bottom that is extended downward first outer chain sheet by first slip plane, and second clipping block then is the bottom that is extended downward second outer chain sheet by second slip plane.
Above-mentioned first clipping block is the bottom that is extended downward first outer chain sheet by the first middle section position place that fastens the cell wall edge, and second clipping block is the bottom that is extended downward second outer chain sheet by the second middle section position place that fastens the cell wall edge.
One outside of above-mentioned first outer chain sheet is made as first arc shaped surface, and an outside of second outer chain sheet is made as second arc shaped surface.
The fast cassette chain of a kind of single pin sheet structure, it is combined with a chain and implements, and the two ends of this chain are provided with inner chain sheet, and described chain sheet structure includes one first outer chain sheet and one second outer chain sheet; First outer chain sheet is provided with one first perforation and adjacent first and snaps in the hole, this first snaps in the hole and oppositely extends to both sides and be communicated with first telescopic chute and first buckling groove, wherein the position of this first telescopic chute is near first perforation, the position of first buckling groove is then away from first perforation, the first perforation internal fixation in this first outer chain sheet has one first chain rivet in addition, and an end of this first chain rivet is provided with first buckling part; Second outer chain sheet is identical with the first outer chain sheet shape, and with the corresponding engaging of this first outer chain sheet, second outer chain sheet is provided with one second perforation and adjacent second and snaps in the hole, this second snaps in the hole and oppositely extends to both sides and be communicated with second telescopic chute and second buckling groove, wherein the position of this second telescopic chute is near second perforation, the position of second buckling groove is then away from second perforation, the second perforation internal fixation in this second outer chain sheet has one second chain rivet in addition, and an end of this second chain rivet is provided with second buckling part; First chain rivet of first outer chain sheet and second chain rivet of second outer chain sheet are engaged in the inner chain sheet at chain two ends respectively, first buckling part of first chain rivet of this first outer chain sheet is aimed at second on second outer chain sheet and is snapped in the hole and snap in, and second buckling part of second chain rivet of second outer chain sheet aims at first on first outer chain sheet and snaps in the hole and snap in, and makes spacing between the adjacent inner chain sheet at chain two ends less than 2.3mm.
One outside of above-mentioned first outer chain sheet is made as first arc shaped surface, and an outside of second outer chain sheet is made as second arc shaped surface.
After adopting said structure, the utlity model has following advantage:
(1) the utility model makes and only produce trickle gap between two inner chain sheet of first outer chain sheet, second outer chain sheet and chain, therefore when carrying out transmission or speed change with the flywheel engagement of bicycle shaft, also can not cause left and right sidesing shifting;
(2) first outer chain sheet in the utility model can not produce collision, wearing and tearing and noise with after second outer chain sheet combines yet in the process of transmission;
(3) the utility model in addition can so that the spacing between the two adjacent inner chain sheets of chain less than 2.3mm, when chain is subjected to improperly in opposite directions pressure extrusion, even when first chain rivet and second chain rivet produce a little displacement in second buckling groove and first buckling groove, still can't arrive second and snap in the position that hole and first snaps in the hole, so first chain rivet and second chain rivet can not snap in hole and first by second and snap in the hole and deviate from, to guarantee the Security of chain on using.
Description of drawings
Fig. 1 is the utility model first embodiment's a three-dimensional exploded view;
Fig. 2 is the clipping block enlarged diagram of E part among Fig. 1;
Fig. 3 is the schematic representation after first and second outer chain sheet snaps in relatively among the utility model first embodiment;
Fig. 4 is the schematic representation of the relative horizontal sliding engaging of first and second outer chain sheet among the utility model first embodiment;
Fig. 5 is the F-F sectional view among Fig. 4;
Fig. 6 is that the utility model first embodiment is installed on the use schematic representation on the flywheel;
Fig. 7 is the schematic representation that first and second outer chain sheet is pegged graft relatively among the utility model second embodiment;
Fig. 8 is the clipping block enlarged diagram among the utility model the 3rd embodiment;
Fig. 9 is the schematic representation that first and second outer chain sheet of known chain is pegged graft relatively;
Figure 10 is the schematic representation of the relative horizontal sliding engaging of first and second outer chain sheet of known chain.
[primary component symbol description]
11 first perforation 12 first of 1 first outer chain sheet snap in the hole
13 first telescopic chutes, 14 first buckling grooves, 15 first slip planes
16 first clipping block 16A, first clipping block, 17 first chain rivets
171 first buckling parts, 172 first necks, 18 first arc shaped surfaces
21 second perforation 22 second of 2 second outer chain sheets snap in the hole
23 second telescopic chutes, 24 second buckling grooves, 25 second slip planes
26 second clipping blocks, 27 second chain rivets, 271 second buckling parts
272 second necks, 28 second arc shaped surfaces, 3 first outer chain sheets
32 first snap in hole 34 first buckling grooves, 33 first telescopic chutes
37 first chain rivets, 4 second outer chain sheets 42 second snap in the hole
43 second telescopic chutes, 44 second buckling grooves, 47 second chain rivets
A serial connection unit A1 inner chain sheet A2 chain roller
A3 chain rivet A31 fixing part A32 buckling part
A33 neck portion B outer chain sheet B1 perforation
B2 fastening hole B21 large-diameter portion B22 minor diameter part
B23 slip plane B3 reentrant part C chain
C1 inner chain sheet D gap d gap
G spacing f1 spacing g flywheel
The outside in the g1 tooth piece h root edge
Embodiment
Below in conjunction with drawings and the specific embodiments characteristics of the present utility model and beneficial effect are elaborated.
At first, see also shown in Figure 1, it is the utility model first embodiment's perspective view, be provided with first outer chain sheet 1 and second outer chain sheet 2 of two identical and corresponding engagings, wherein first outer chain sheet 1 is provided with first of one first perforation, 11 and one adjacent suitable distance and snaps in hole 12, this first snaps in hole 12 and also oppositely extends first telescopic chute 13 and first buckling groove 14 that is communicated with a suitable length to both sides, wherein the position of this first telescopic chute 13 is near first perforation 11, the position of first buckling groove 14 is then away from first perforation 11, and first buckling groove 14 in this first periphery wall upper edge that snaps in hole 12 and be concaved with one first slip plane 15, and this first snaps in hole 12 and forms 2 first clipping blocks 16 with first buckling groove 14 in opposite directions in the wall position that is communicated with first slip plane 15 and (please refer to shown in Figure 2, it is the enlarged diagram of first clipping block 16 of E part among Fig. 1), and this first clipping block 16 is the bottoms that extended downward first outer chain sheet 1 by first slip plane 15; In addition also first outer chain sheet 1 first the perforation 11 internal fixation one first chain rivet 17 is arranged, one end of this first chain rivet 17 is provided with one first buckling part 171, this first buckling part 171 then continues and is connected with the first less neck 172 of a diameter, an outside of this first outer chain sheet 1 is formed with first arc shaped surface 18 in addition, and the width between first telescopic chute 13 and first arc shaped surface 18 can not be diminished, and it is constant to keep its intensity.
The structure such as second perforation, 21 grades of second outer chain sheet 2 is identical with the structure of above-mentioned first outer chain sheet 1, so repeat no more.During combination, as shown in Figure 1, second chain rivet 27 of first chain rivet 17 on first outer chain sheet 1 and second outer chain sheet 2 is engaged in respectively on the inner chain sheet C1 at inner chain sheet C1 two ends of a chain C, then first outer chain sheet 1 and second outer chain sheet 2 are docked in opposite directions, making first buckling part 171 of first chain rivet 17 of first outer chain sheet 1 can aim at second on another second outer chain sheet 2 snaps in hole 22 and snaps in, second buckling part 271 of second chain rivet 27 of same second outer chain sheet 2 also can be aimed at first on first outer chain sheet 1 and snap in hole 12 and snap in, after snapping in mutually, there is not spacing between the adjacent inner chain sheet C1 of chain C two, first neck 172 with first chain rivet 17 of first outer chain sheet 1 fits on second slip plane 25 of second outer chain sheet 2 then, again with first chain rivet 17 parallel slip (as shown in Figure 3) in second buckling groove 24, and second neck 272 of second chain rivet 27 of second outer chain sheet 2 fits on first slip plane 15 of first outer chain sheet 1 equally, then with second chain rivet 27 parallel slip in first buckling groove 14, when touching 2 second clipping blocks 26, continues first neck 172 of first chain rivet 17 applied thrust again, make second telescopic chute 23 can produce the admissible space that struts with respect to second buckling groove, 24 opposite sides, thereby related second buckling groove 24 that makes struts relatively, and can pass through 2 second clipping blocks 26 for first neck 172 of first chain rivet 17, and second neck 272 of second chain rivet 27 same applied thrust that continues when touching 2 first clipping blocks 16, make first telescopic chute 13 can produce the admissible space that struts with respect to first buckling groove, 14 opposite sides, thereby related first buckling groove 14 that makes struts relatively, and can pass through 2 first clipping blocks 16 for second neck 272 of second chain rivet 27, after first chain rivet 17 passes through, then 2 second clipping blocks 26 again can the elastic recovery original state, the clip that 172 of first necks of first chain rivet 17 like this are subjected to 2 second clipping blocks 26 (please refer to shown in Figure 5, it is the F-F sectional view among Fig. 4), second chain rivet 27 is after passing through again, then 2 first clipping blocks 16 again can the elastic recovery original state, 272 clips that can be subjected to 2 first clipping blocks 16 equally of second neck of this second chain rivet 27 like this, and the two ends of first chain rivet 17 and second chain rivet 27 flush with the outside of second outer chain sheet 2 and first outer chain sheet 1 respectively, then this first chain rivet 17 can not detach second outer chain sheet 2, and second chain rivet 27 can not detach first outer chain sheet 1 yet, simultaneously because first buckling part 171 of first chain rivet 17 is to be parallel direction to move in second buckling groove 24, and also being parallel direction in first buckling groove 14, moves second buckling part 271 of second chain rivet 27, so all do not have, mobile down trajectory path, therefore at first outer chain sheet 1, only can produce very trickle gap d (as shown in Figure 4) between the two adjacent inner chain sheet C1 of second outer chain sheet 2 and chain C, so first arc shaped surface 18 of first outer chain sheet 1 and second arc shaped surface 28 of second outer chain sheet 2, respectively when carrying out transmission or speed change (as shown in Figure 6) with the tooth piece g1 engagement of the flywheel g of bicycle shaft, can fit along the tooth piece g1 of flywheel g root edge, can not cause left and right sidesing shifting yet, and in the process of transmission, also can not protrude from because of the two ends of first chain rivet 17 and second chain rivet 27 beyond second outer chain sheet 2 and first outer chain sheet 1, outside h produces wearing and tearing and noise because of collision in the root edge of tooth piece g1 and go up with flywheel g.
Second embodiment of the present utility model, as shown in Figure 7, wherein first and second of first and second outer chain sheet 3,4 snaps in hole 32,42 and can shift near towards the position of first and second buckling groove 34,44, and away from the position of first and second telescopic chute 33,43, when it was assembled, the spacing f1 between the two adjacent inner chain sheet C1 was 2.3mm, so, when chain C was subjected to improperly in opposite directions pressure extrusion, this first chain rivet 37 and second chain rivet 47 still can't be deviate from.
The 3rd embodiment of the present utility model, as shown in Figure 8, wherein 2 first clipping block 16A (structure and the function of second clipping block are identical) be by the first middle section position place that fastens the cell wall edge to compacted under, and extend to the bottom of first outer chain sheet.
Previous embodiment only is the utility model illustration, can not limit protection domain of the present utility model with this, and is every according to the technological thought that the utility model proposes, and any change of being done on the technological scheme basis all falls within the utility model protection domain.
Claims (6)
1. the fast cassette chain of a single pin sheet structure is characterized in that: include one first outer chain sheet and one second outer chain sheet;
First outer chain sheet is provided with one first perforation and adjacent first and snaps in the hole, this first snaps in the hole and oppositely extends to both sides and be communicated with first telescopic chute and first buckling groove, wherein this first telescopic chute position is near first perforation, the first buckling groove position is then away from first perforation, and first buckling groove in this first periphery wall upper edge that snaps in the hole and be concaved with first slip plane, and snap in the wall position that the hole is communicated with first buckling groove in first and form at least one first clipping block in opposite directions, the first perforation internal fixation at first outer chain sheet has one first chain rivet in addition, this first chain rivet, one end is provided with first buckling part, and this first buckling part then continues and is connected with first neck of a diameter less than first buckling part;
Second outer chain sheet is identical with the first outer chain sheet shape, and with the corresponding engaging of this first outer chain sheet, this second outer chain sheet is provided with one second perforation and adjacent second and snaps in the hole, this second snaps in the hole and oppositely extends to both sides and be communicated with second telescopic chute and second buckling groove, wherein the position of this second telescopic chute is near second perforation, the position of second buckling groove is then away from second perforation, and second buckling groove in this second periphery wall upper edge that snaps in the hole and be concaved with second slip plane, and snap in the wall position that the hole is communicated with second buckling groove in second and form at least one second clipping block in opposite directions, the second perforation internal fixation in this second outer chain sheet has one second chain rivet in addition, one end of this second chain rivet is provided with second buckling part, and this second buckling part then continues and is connected with second neck of a diameter less than second buckling part.
2. the fast cassette chain of single pin as claimed in claim 1 sheet structure, it is characterized in that: described first clipping block is the bottom that is extended downward first outer chain sheet by first slip plane, and second clipping block then is the bottom that is extended downward second outer chain sheet by second slip plane.
3. the fast cassette chain of single pin as claimed in claim 1 sheet structure, it is characterized in that: described first clipping block is the bottom that is extended downward first outer chain sheet by the first middle section position place that fastens the cell wall edge, and second clipping block is the bottom that is extended downward second outer chain sheet by the second middle section position place that fastens the cell wall edge.
4. the fast cassette chain of single pin as claimed in claim 1 sheet structure, it is characterized in that: an outside of described first outer chain sheet is made as first arc shaped surface, and an outside of second outer chain sheet is made as second arc shaped surface.
5. the fast cassette chain of a single pin sheet is constructed, and it is characterized in that: it is combined with a chain and implements, and the two ends of this chain are provided with inner chain sheet, and described chain sheet structure includes one first outer chain sheet and one second outer chain sheet;
First outer chain sheet is provided with one first perforation and adjacent first and snaps in the hole, this first snaps in the hole and oppositely extends to both sides and be communicated with first telescopic chute and first buckling groove, wherein the position of this first telescopic chute is near first perforation, the position of first buckling groove is then away from first perforation, the first perforation internal fixation in this first outer chain sheet has one first chain rivet in addition, and an end of this first chain rivet is provided with first buckling part;
Second outer chain sheet is identical with the first outer chain sheet shape, and with the corresponding engaging of this first outer chain sheet, second outer chain sheet is provided with one second perforation and adjacent second and snaps in the hole, this second snaps in the hole and oppositely extends to both sides and be communicated with second telescopic chute and second buckling groove, wherein the position of this second telescopic chute is near second perforation, the position of second buckling groove is then away from second perforation, the second perforation internal fixation in this second outer chain sheet has one second chain rivet in addition, and an end of this second chain rivet is provided with second buckling part;
First chain rivet of first outer chain sheet and second chain rivet of second outer chain sheet are engaged in the inner chain sheet at chain two ends respectively, first buckling part of first chain rivet of this first outer chain sheet is aimed at second on second outer chain sheet and is snapped in the hole and snap in, and second buckling part of second chain rivet of second outer chain sheet aims at first on first outer chain sheet and snaps in the hole and snap in, and makes spacing between the adjacent inner chain sheet at chain two ends less than 2.3mm.
6. the fast cassette chain of single pin as claimed in claim 5 sheet structure, it is characterized in that: an outside of described first outer chain sheet is made as first arc shaped surface, and an outside of second outer chain sheet is made as second arc shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920153434XU CN201547183U (en) | 2009-06-16 | 2009-06-16 | Single-leg fast-clamping type chain piece structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920153434XU CN201547183U (en) | 2009-06-16 | 2009-06-16 | Single-leg fast-clamping type chain piece structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547183U true CN201547183U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920153434XU Expired - Fee Related CN201547183U (en) | 2009-06-16 | 2009-06-16 | Single-leg fast-clamping type chain piece structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150610A (en) * | 2017-12-08 | 2018-06-12 | 南京利民机械有限责任公司 | A kind of driving chain outer plate and its production technology |
| CN109658825A (en) * | 2018-10-29 | 2019-04-19 | 努比亚技术有限公司 | A kind of connector, connection component, bending apparatus and flexible screen terminal |
-
2009
- 2009-06-16 CN CN200920153434XU patent/CN201547183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150610A (en) * | 2017-12-08 | 2018-06-12 | 南京利民机械有限责任公司 | A kind of driving chain outer plate and its production technology |
| CN109658825A (en) * | 2018-10-29 | 2019-04-19 | 努比亚技术有限公司 | A kind of connector, connection component, bending apparatus and flexible screen terminal |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20170616 |
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| CF01 | Termination of patent right due to non-payment of annual fee |