CN201235905Y - Screw tightener of motorcycle engine chain tightening device - Google Patents
Screw tightener of motorcycle engine chain tightening device Download PDFInfo
- Publication number
- CN201235905Y CN201235905Y CNU2008200889449U CN200820088944U CN201235905Y CN 201235905 Y CN201235905 Y CN 201235905Y CN U2008200889449 U CNU2008200889449 U CN U2008200889449U CN 200820088944 U CN200820088944 U CN 200820088944U CN 201235905 Y CN201235905 Y CN 201235905Y
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- Prior art keywords
- installation part
- installation portion
- housing screw
- compression screw
- groove
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- Expired - Lifetime
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- 238000009434 installation Methods 0.000 claims abstract description 52
- 230000006835 compression Effects 0.000 abstract 6
- 238000007906 compression Methods 0.000 abstract 6
- 230000010354 integration Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a compression screw for a chain tensioner of a motorcycle engine, which belongs to the technical field of machinery. The compression screw solves the problems of difficult disassembling and assembling and resource waste of the prior compression screw after used for a long time. The compression screw for a chain tensioner of a motorcycle engine is arranged on the shell of the tensioner and comprises a connection part which is provided with external threads and an installation part which forms a prism shape. A groove is positioned on the end part of the installation part, a circular presser bit with the diameter longer than the external diameter of the installation part is positioned between the connection part and the installation part, and the connection part, the presser bit and the installation part are connected into integration. Because the compression screw is provided with the installation part which forms a regular polygon prism shape, the groove in an in-line or cross shape is positioned on the end part of the installation part, and meanwhile, the circular presser bit is positioned between the installation part and the connection part, the compression screw is also convenient to disassemble or assemble after used for a long time and can prevent oil in a tensioner from spilling and external dusk and foreign matters from entering so as to ensure normal operation.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the housing screw of a kind of tension device, particularly a kind of chain tightening arrangement for automobile engine.
Background technology
Motor bike normally carries out transmission by belt or chain, and owing to reasons such as use wearing and tearing, chain can extend and cause laxly, causes chain to break away from or sends phenomenon such as noise, the transmission deleterious of chain.
For preventing above-mentioned phenomenon; usually tension device can be installed on motor cycle engine; the structure of existing chain tightening arrangement for automobile engine mainly comprises the tension device shell that has cavity; on the afterbody of shell, be connected with a screw; this screw is used for the sealing of tension device end, and preventing that the tension device interior oil from spilling to enter with external dust, foreign matter influences the tension device normal operation.
But the afterbody screw on the existing tension device shell is common in-line or cross groove screw, after frequent dismounting or long-term use appear in screw in using, the flat recess of screw or cross recess can wear and tear or get rusty, can't cooperate with the screwing tool of yi word pattern or cross cutter head, the screw of tension device afterbody can't be dismantled, thereby be difficult to re-use after causing this tension device when fixing over an engine or change chain, to be difficult to pull down or dismantle, cause the wasting of resources.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing tension device, provides a kind of simple in structure, the housing screw of the chain tightening arrangement for automobile engine of installation, convenient disassembly.
The purpose of this utility model can realize by following technical proposal: a kind of housing screw of chain tightening arrangement for automobile engine, be arranged on the tension device housing, it is characterized in that, this housing screw comprises the installation portion that has externally threaded connecting portion and be prism-shaped, have groove on the end of described installation portion, have circular compressing tablet between described connecting portion and the installation portion, and the diameter of compressing tablet is greater than the external diameter of installation portion, described connecting portion, compressing tablet and installation portion three are connected as a single entity.
The housing screw of chain tightening arrangement for automobile engine of the present utility model is connected on the housing of tension device, during installation or removal, opener can be inserted in the groove and screw, also can directly be clamped in installation portion by instruments such as spanners screws outward, make housing screw after groove wearing and tearing occur or gets rusty, still can attach it on the housing or and take apart by the installation portion of prism-shaped from housing.After housing screw was connected on the housing, the compressing tablet between connecting portion and the installation portion was pressed on seal ring on the housing of tension device, thereby seals, and preventing that the tension device interior oil from spilling to enter with external dust, foreign matter influences the tension device normal operation.
In the housing screw of above-mentioned chain tightening arrangement for automobile engine, described groove is in-line.This structure conveniently selects for use the opener of common in-line to carry out this housing screw of installation or removal.
As another kind of situation, in the housing screw of above-mentioned chain tightening arrangement for automobile engine, described groove is criss-cross.This structure conveniently selects for use common criss cross opener to carry out this housing screw of installation or removal.
In the housing screw of above-mentioned chain tightening arrangement for automobile engine, described installation portion is positive polygon prism shape.As preferably, described installation portion is positive hexa-prism.
Compared with prior art, the housing screw of this chain tightening arrangement for automobile engine has the following advantages:
1, the installation portion of housing screw is positive polygon prism, and has in-line or criss cross groove on the end of installation portion, is convenient to housing screw and still can be disassembled easily or installs after long-term use.
2, the compressing tablet that between installation portion and connecting portion, has a circle, this housing screw is installed after, the oil that prevents the tension device enclosure interior spills with external dust, foreign matter and enters, and influences the tension device normal operation.
Description of drawings
Fig. 1 is the housing screw structural representation of this chain tension device.
Fig. 2 is the birds-eye view of the housing screw cross groove of this chain tension device.
Fig. 3 is the birds-eye view of the housing screw in-line groove of this chain tension device.
Fig. 4 is the structural representation after the housing screw of this chain tension device is installed.
Among the figure, 1, connecting portion; 2, installation portion; 21, groove; 3, compressing tablet; 4, tension device housing; 41, through hole; 5, seal ring.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, the housing screw of chain tightening arrangement for automobile engine of the present utility model, comprise compressing tablet 3 that has externally threaded connecting portion 1, circle and the installation portion 2 that is positive hexa-prism, compressing tablet 3 is located between connecting portion 1 and the installation portion 2 and with connecting portion 1 and installation portion 2 and is connected as a single entity, and the diameter of compressing tablet 3 is greater than the size between two corner angle of the distance maximum of installation portion 2.
As shown in Figure 2, have criss cross groove 21 on the end of positive six prismatic installation portions 2, this groove 21 can cooperate with the criss cross opener, the installation or removal of the housing screw of convenient chain tightening arrangement for automobile engine of the present utility model.
As shown in Figure 3, the housing screw of chain tightening arrangement for automobile engine of the present utility model, groove on the end of positive six prismatic installation portions 2 21 can also be split into the shape of in-line, this groove 21 can cooperate with the opener of in-line, the installation or removal of the housing screw of convenient chain tightening arrangement for automobile engine of the present utility model.
As shown in Figure 4, through hole 41 places of the housing screw connecting portion 1 of chain tightening arrangement for automobile engine of the present utility model by being threaded in tension device housing 4, installation portion 2 is in the outside of tension device housing 4, and is provided with a seal ring 5 between installation portion 2 and housing 4.
The housing screw of chain tightening arrangement for automobile engine of the present utility model maybe needs when tension device housing 4 disassembles being installed on the tension device housing 4, can select for use in-line or criss cross opener to be inserted in the groove 21, carry out the installation or removal operation again; If this housing screw because of long-term use after, groove 21 wearing and tearing occur and causes opener to skid when operation, or because groove 21 gets rusty in the time of can't using in-line or criss cross opener, also can be by the outside of corresponding tool holdings such as spanner at the installation portion 2 of positive six prisms, carry out the installation or removal operation again, so the housing screw of the chain tightening arrangement for automobile engine of this structure both can carry out the installation or removal operation by groove 21, the installation or removal operation is carried out in the outside of installation portion 2 that also can be by positive six prisms, can guarantee the installation or removal of this housing screw preferably.And the compressing tablet 3 between connecting portion 1 and the installation portion 2 is pressed on seal ring 5 on the housing after housing screw is connected on the housing, thereby plays sealing function, can prevent from that the tension device interior oil from spilling with external dust, foreign matter to enter, and influences the tension device normal operation.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as connecting portion 1, installation portion 2, groove 21, compressing tablet 3, tension device housing 4, through hole 41, seal ring 5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (5)
1, a kind of housing screw of chain tightening arrangement for automobile engine, be arranged on the tension device housing (4), it is characterized in that, this housing screw comprises the installation portion (2) that has externally threaded connecting portion (1) and be prism-shaped, have groove (21) on the end of described installation portion (2), has circular compressing tablet (3) between described connecting portion (1) and the installation portion (2), and the diameter of compressing tablet (3) is greater than the external diameter of installation portion (2), and described connecting portion (1), compressing tablet (3) and installation portion (2) three are connected as a single entity.
2, the housing screw of chain tightening arrangement for automobile engine according to claim 1 is characterized in that, described groove (21) is in-line.
3, the housing screw of chain tightening arrangement for automobile engine according to claim 1 is characterized in that, described groove (21) is criss-cross.
According to the housing screw of claim 1 or 2 or 3 described chain tightening arrangement for automobile engine, it is characterized in that 4, described installation portion (2) is positive polygon prism shape.
5, the housing screw of chain tightening arrangement for automobile engine according to claim 4 is characterized in that, described installation portion (2) is positive hexa-prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200889449U CN201235905Y (en) | 2008-06-18 | 2008-06-18 | Screw tightener of motorcycle engine chain tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200889449U CN201235905Y (en) | 2008-06-18 | 2008-06-18 | Screw tightener of motorcycle engine chain tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235905Y true CN201235905Y (en) | 2009-05-13 |
Family
ID=40648643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200889449U Expired - Lifetime CN201235905Y (en) | 2008-06-18 | 2008-06-18 | Screw tightener of motorcycle engine chain tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235905Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615509A (en) * | 2013-12-12 | 2014-03-05 | 玉环中本机械有限公司 | Tensioner of chain of motorcycle engine |
-
2008
- 2008-06-18 CN CNU2008200889449U patent/CN201235905Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615509A (en) * | 2013-12-12 | 2014-03-05 | 玉环中本机械有限公司 | Tensioner of chain of motorcycle engine |
| CN103615509B (en) * | 2013-12-12 | 2016-06-29 | 玉环中本机械有限公司 | A kind of chain tightening arrangement for automobile engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUHUAN ZHONGBEN MACHINERY CO., LTD. Free format text: FORMER OWNER: GAO XI Effective date: 20090918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090918 Address after: Zhujiang Road, Zhejiang, Kanmen, Haicheng Road, Yuhuan County Province, China: 317602 Patentee after: YUHUAN ZHONGBEN MACHINERY CO., LTD. Address before: Yuhuan County Zhujiang Road, Kanmen, Haicheng Road, Yuhuan China Zhejiang Machinery Co., Ltd., postcode: 317602 Patentee before: Gao Xi |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |