CN205154827U - Fastening connection structure of cylinder block and head - Google Patents
Fastening connection structure of cylinder block and head Download PDFInfo
- Publication number
- CN205154827U CN205154827U CN201521027406.5U CN201521027406U CN205154827U CN 205154827 U CN205154827 U CN 205154827U CN 201521027406 U CN201521027406 U CN 201521027406U CN 205154827 U CN205154827 U CN 205154827U
- Authority
- CN
- China
- Prior art keywords
- stud
- cylinder block
- sheath
- head
- water cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a fastening connection structure of cylinder block and head, this fastening connection structure of cylinder block and head includes: stud, its lower extreme is screwed up in the screw of cylinder block, and the top surface from the cylinder head is worn to this stud's upper end, the nut, its screw up in stud's upper end, the sheath, its cover is located stud's lower part, the upper end of this sheath is higher than the water cavity of cylinder block, and the lower extreme of this sheath is less than the water cavity of cylinder block, the upper end of this sheath with between the cylinder block and the lower extreme of this sheath with respectively be provided with the sealing member between the cylinder block. The utility model discloses a sheath can be kept apart stud with the coolant liquid in the engine water cavity to prevent that stud from being corroded, moreover the utility model discloses need not set up the annular on stud to reduce the danger of stud at the fluting fatigue fracture of department, thereby improved stud's life.
Description
Technical field
The utility model relates to engine art, particularly a kind of fastening structure of cylinder block and head.
Background technique
The cylinder block and head of available engine is connected by stud, as shown in Figure 1, the lower end of stud 3 is tightened against in the screw 11 of cylinder block 1, and the upper end of stud 3 passes the end face of cylinder head 2, and the upper end of stud 3 is fixed by nut 4.Owing to there is water cavity 12 in cylinder block 1, stud 3 extend in cylinder block 1 that some is contained in water cavity 12, for preventing leaking, existing stud 3 all offering annular groove above and below water cavity 12, and on annular groove, arranges Sealing 5.Although stud 3 can prevent water cavity 12 from leaking by Sealing 5, the part that stud 3 is contained in water cavity 12 still can directly contact with the cooling liquid of motor, cooling liquid has corrosive action to stud 3, and the cooling liquid of flowing more can accelerated corrosion, therefore this structure can cause greatly reduce the working life of stud 3, when fracture appears in stud 3, motor just can be caused not run.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is the fastening structure providing a kind of cylinder block and head, thus overcomes existing structure because of stud and be partially accommodated in the shortcoming of the corrosion that is cooled in the water cavity of cylinder block.
For achieving the above object, the utility model provides a kind of fastening structure of cylinder block and head, and it comprises: stud, and its lower end is tightened against in the screw of cylinder block, and the upper end of this stud is piercing in the end face of cylinder head; Nut, it is tightened against the upper end of described stud; Wherein, also comprise: sheath, it is sheathed on the bottom of described stud, and the upper end of this sheath is higher than the water cavity of described cylinder block, and the lower end of this sheath is lower than the water cavity of described cylinder block; Respectively Sealing is provided with between the upper end of this sheath and described cylinder block and between the lower end of this sheath and described cylinder block.
Preferably, in technique scheme, described sheath is copper sheathing.
Preferably, in technique scheme, described Sealing is O-ring seals; The top and bottom of described sheath are provided with annular groove, each described annular groove are provided with a described Sealing.
Compared with prior art, the utility model has following beneficial effect:
The utility model can be isolated the cooling liquid in stud and motor water cavity by sheath, be corroded to prevent stud, and the utility model does not need to offer annular groove on stud, to reduce the danger of stud in the fatigue fracture of fluting place, thus improve the working life of stud.
Accompanying drawing explanation
Fig. 1 carries out according to existing cylinder block and head the structural representation that connects by stud.
Fig. 2 is the structural representation of the fastening structure according to the utility model cylinder block and head.
Main Reference Numerals illustrates:
1-cylinder block, 11-screw, 12-water cavity; 2-cylinder head; 3-stud; 4-nut; 5-Sealing; 6-sheath.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
Fig. 2 shows the structural representation of the fastening structure of a kind of cylinder block and head according to the utility model preferred implementation, and the fastening structure of this cylinder block and head comprises stud 3, nut 4, sheath 6 and Sealing 5.
With reference to figure 2, the lower end of stud 3 is tightened against in the screw 11 of cylinder block 1, and the upper end of stud 3 is piercing in the end face of cylinder head 2.Nut 4 is tightened against the upper end of stud 3, cylinder head 2 can be made to be fixed in cylinder block 1 by stud 3 and nut 4.Sheath 6 is sheathed on the bottom of stud 3, and the upper end of sheath 6 is higher than the water cavity 12 of cylinder block 1, and the lower end of sheath 6 is lower than the water cavity 12 of cylinder block 1, and the lower end of stud 3 is connected with screw 11 through after sheath 6.Sheath 6 can carry out completely isolated with water cavity 12 the part that stud 3 is contained in the water cavity 12 of cylinder block 1, does not reach stud 3 to make the cooling liquid in water cavity 12.Sealing 5 is provided with between the upper end of sheath 6 and institute's cylinder block 1, and be also provided with Sealing 5 between the lower end of sheath 6 and cylinder block 1, the Sealing 5 of sheath 6 upper end is higher than water cavity 12, and the Sealing 5 of the lower end of sheath 6 is lower than water cavity 12, thus can avoid leaking.Preferably, continue with reference to figure 2, Sealing 5 is O-ring seals, and the top and bottom of sheath 6 are provided with annular groove, and the two ends up and down of sheath 6 respectively can arrange an annular groove, also can respectively arrange multiple annular groove, each annular groove are provided with a Sealing 5.Further preferably, sheath 6 is copper sheathing, and when being pressed in cylinder block 1 to make sheath 6, the outer wall of sheath 6 is fitted in cylinder block 1, to improve sealability by extrusion-deformation.
The utility model can be isolated stud 3 and the cooling liquid in the water cavity 12 of motor by sheath 6, be corroded to prevent stud 3, and the utility model offers annular groove and install Sealing 5 on sheath 6, it does not need to offer annular groove on stud 3, thus reduce stud 3 danger in the fatigue fracture of fluting place because needing fluting, to improve the working life of stud 3.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (3)
1. a fastening structure for cylinder block and head, it comprises:
Stud, its lower end is tightened against in the screw of cylinder block, and the upper end of this stud is piercing in the end face of cylinder head;
Nut, it is tightened against the upper end of described stud;
It is characterized in that, described fastening structure also comprises:
Sheath, it is sheathed on the bottom of described stud, and the upper end of this sheath is higher than the water cavity of described cylinder block, and the lower end of this sheath is lower than the water cavity of described cylinder block; Respectively Sealing is provided with between the upper end of this sheath and described cylinder block and between the lower end of this sheath and described cylinder block.
2. the fastening structure of cylinder block and head according to claim 1, is characterized in that, described sheath is copper sheathing.
3. the fastening structure of cylinder block and head according to claim 1, is characterized in that, described Sealing is O-ring seals; The top and bottom of described sheath are provided with annular groove, each described annular groove are provided with a described Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027406.5U CN205154827U (en) | 2015-12-10 | 2015-12-10 | Fastening connection structure of cylinder block and head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027406.5U CN205154827U (en) | 2015-12-10 | 2015-12-10 | Fastening connection structure of cylinder block and head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154827U true CN205154827U (en) | 2016-04-13 |
Family
ID=55690528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521027406.5U Expired - Fee Related CN205154827U (en) | 2015-12-10 | 2015-12-10 | Fastening connection structure of cylinder block and head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936734A (en) * | 2017-05-15 | 2020-11-13 | 康明斯公司 | Cylinder head bolt boss notch |
-
2015
- 2015-12-10 CN CN201521027406.5U patent/CN205154827U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936734A (en) * | 2017-05-15 | 2020-11-13 | 康明斯公司 | Cylinder head bolt boss notch |
| CN111936734B (en) * | 2017-05-15 | 2022-12-20 | 康明斯公司 | Cylinder cover bolt boss notch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160413 Termination date: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |