CN201180714Y - Expansion bolt type mudguard stand - Google Patents
Expansion bolt type mudguard stand Download PDFInfo
- Publication number
- CN201180714Y CN201180714Y CNU2008200200883U CN200820020088U CN201180714Y CN 201180714 Y CN201180714 Y CN 201180714Y CN U2008200200883 U CNU2008200200883 U CN U2008200200883U CN 200820020088 U CN200820020088 U CN 200820020088U CN 201180714 Y CN201180714 Y CN 201180714Y
- Authority
- CN
- China
- Prior art keywords
- expansion bolt
- fixed bearing
- fixed pedestal
- expansion
- cinch bolt
- 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 - Lifetime
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- Body Structure For Vehicles (AREA)
Abstract
The utility model discloses an expansion bolt type fender bracket which structurally includes a fixed pedestal, an expansion bolt and an external casing. The expansion bolt is assembled inside the fixed pedestal, and the outer wall of the fixed pedestal is sleeved with the external casing. According to the expansion bolt type fender bracket, the expansion force can be generated between the fixed pedestal and the external casing, and the expansion force is larger if the bolt is screwed more tightly and exposed with a longer length; the outside is sleeved with a reinforcement tube for partially reinforcing the external casing and mainly preventing the external casing from bursting; in order to facilitate the deformation of the expansion bolt which is inserted into the fixed pedestal, the conical surface part of the fixed pedestal is divided into four equal parts, and grooves are formed. The major advantage of the expansion bolt type fender bracket is that the expansion structure of the split expansion bolt is adopted, thereby enabling a product to have enough strength, and greatly improving the reliability.
Description
Technical field
The utility model relates to a kind of splash apron bracket, specifically a kind of cinch bolt formula splash apron bracket.
Background technique
What the splash apron bracket of present domestic use was commonly used has two kinds:
Welding support; The simple cost of this support technology is low, main problem exists thermal stress to concentrate when being welding, add to be subjected to long-term vibration in the mudguard wing using process, also can adhere to foreign objects such as a large amount of ice, earth sometimes on the mudguard wing has increased the weight of mudguard wing, thereby the root fracture often takes place.In addition, overall structure is of poor quality.
The casting bearing adds the vulcanized rubber bar; This structure can effectively reduce the impact force of vibration by the damping effect of rubber, but complex process, the cost height.Pipe for bending is difficult for using this method, increases the difficulty of sulfuration.
The model utility content
Technical problem to be solved in the utility model provides cinch bolt formula splash apron bracket at the existing in prior technology defective, and the mudguard wing connection that solves the prior art existence is not firm, the problem that easy-rupturing or cost long-life are short.
The technological scheme that its technical problem that solves the utility model adopts is: cinch bolt formula splash apron bracket, and its structure comprises fixed bearing, cinch bolt, outer sleeve, described fixed bearing mounted inside cinch bolt, outer wall then is with outer sleeve.
The position that is fitted to each other of described fixed bearing and cinch bolt all is designed to the conical outer surface that adapts, and offers the longitudinal opening groove on the fixed bearing wall.
The longitudinal opening groove of offering on the described fixed bearing wall is 4 and equidistant.
The outside of described outer sleeve also is with the overcoat reinforcement tube; Wherein the overcoat reinforcement tube is mainly used in the pipe of outer sleeve wall thickness≤5mm.
Cinch bolt formula splash apron bracket of the present utility model compared with prior art has following beneficial effect:
Cinch bolt formula splash apron bracket of the present utility model can produce tension force between fixed bearing and the outer sleeve, and tight more expose long more that bolt is beaten will produce big more tension force; The overcoat reinforcement tube mainly is to prevent the outer sleeve spalling in order to strengthen outer sleeve is local; Be easy to produce distortion after making cinch bolt insert fixed bearing, the conical surface of fixed bearing partly is divided into quarter, has groove.Each component assembly can be processed respectively, and EXPANSION ANCHOR BOLTS and fixed bearing are convenient to reduce cost in batches, and outer sleeve can be according to the needs bending of mudguard wing assembly and car load layout.During use, the back that the splash apron bracket packing can be finished directly is connected with vehicle frame can realize reliable connection, and root has intensity enough more than needed, the working life of effectively improving support in using.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is the structural representation of the cinch bolt of cinch bolt formula splash apron bracket.
Fig. 2 is the support bracket fastened structural representation of cinch bolt formula splash apron bracket.
Fig. 3 is the assembly structure schematic representation of cinch bolt formula splash apron bracket.
Wherein: 1, the conical surface of cinch bolt; 2, longitudinal opening groove; 3, the conical surface of fixed bearing; 4, cinch bolt; 5, fixed bearing; 6, overcoat reinforcement tube; 7, outer sleeve.
Embodiment
According to Fig. 1, Fig. 2, shown in Figure 3, cinch bolt formula splash apron bracket, its structure comprises fixed bearing 5, cinch bolt 4, outer sleeve 7, described fixed bearing 5 mounted inside cinch bolts 4, outer wall then is with outer sleeve 7.The material that cinch bolt uses is 40Cr, forms by forging, and it is after quenching with Subsequent tempering makes it reach intensity more than 10.9 grades.Therefore, this bolt has enough tensile strength and surface hardness.
Fixed bearing, inside and outside both sides also are conical surfaces, and for the conical surface 1 that makes cinch bolt cooperates with the conical surface 3 of fixed bearing, should make the conical surface cone angle of fixed bearing more smaller than the cone angle of bolt, and the two needs cone angle in opposite directions when cooperating, the microcephaly of bolt should be inserted into about 20mm in the microcephaly of fixed bearing easily, in addition, be easy to produce distortion after making cinch bolt insert fixed bearing, the conical surface of fixed bearing partly is divided into quarter, has the longitudinal opening groove.Inner conical surface cooperates with cinch bolt, and male cone (strobilus masculinus) cooperates with outer sleeve.
The outside of described outer sleeve 7 also is with overcoat reinforcement tube 6; Wherein overcoat reinforcement tube 6 is mainly used in the pipe of outer sleeve wall thickness≤5mm.Outer sleeve is used for fixing mudguard wing, its shape mainly according to car load layout, mudguard wing installation requirement, and the manufacturability aspect consider.Emphasis is to guarantee that outer sleeve is connected the precision of mating part with the overcoat reinforcement tube, need use machined in case of necessity, and the expansive force that prevents the cinch bolt generation is the outer sleeve spalling, and requiring its internal diameter and outer sleeve is transition fit, needs processing.
Cinch bolt inserts the center of fixed bearing during assembling, because the difference of cone angle can be fixed bearing conical surface distending, the internal diameter that is enclosed within the outer sleeve in the fixed bearing conical surface outside this moment is certain, can stop opening of the bearing conical surface, between fixed bearing and outer sleeve, can produce tension force like this, tight more expose long more that bolt is beaten will produce big more tension force.
Cinch bolt formula splash apron bracket can in normal cycle life-cycle of using, be fixed on the vehicle frame all the time at vehicle, connects the mudguard wing assembly, and bears the weight of mudguard wing and the test of vibrating for a long time from vehicle frame.
Claims (4)
1, cinch bolt formula splash apron bracket is characterized in that: its structure comprises fixed bearing, cinch bolt, outer sleeve, described fixed bearing mounted inside cinch bolt, and outer wall then is with outer sleeve.
2, cinch bolt formula splash apron bracket according to claim 1 is characterized in that: the position that is fitted to each other of described fixed bearing and cinch bolt all is designed to the conical outer surface that adapts, and offers the longitudinal opening groove on the fixed bearing wall.
3, cinch bolt formula splash apron bracket according to claim 2 is characterized in that: the longitudinal opening groove of offering on the described fixed bearing wall is 4 and equidistant.
4, cinch bolt formula splash apron bracket according to claim 1 and 2, it is characterized in that: the outside of described outer sleeve also is with the overcoat reinforcement tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200200883U CN201180714Y (en) | 2008-04-08 | 2008-04-08 | Expansion bolt type mudguard stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200200883U CN201180714Y (en) | 2008-04-08 | 2008-04-08 | Expansion bolt type mudguard stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180714Y true CN201180714Y (en) | 2009-01-14 |
Family
ID=40250214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200200883U Expired - Lifetime CN201180714Y (en) | 2008-04-08 | 2008-04-08 | Expansion bolt type mudguard stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180714Y (en) |
-
2008
- 2008-04-08 CN CNU2008200200883U patent/CN201180714Y/en not_active Expired - Lifetime
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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: CHINA NATIONAL HEAVY DUTY TRUCK GROUP JINAN POWER Free format text: FORMER OWNER: JINAN TECH CENTER CO., LTD., CHINA HEAVY TRUCK GROUP Effective date: 20100913 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100913 Address after: 250002 Ji'nan, central city, Shandong hero hill road, No. 165 Patentee after: China National Heavy Duty Truck Group Jinan Power Co., Ltd. Address before: 250002 Ji'nan, central city, Shandong hero hill road, No. 165 Patentee before: Jinan Tech Center Co., Ltd., China Heavy Truck Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |
|
| CX01 | Expiry of patent term |