CN201439792U - Automobile brake drum connecting bolt - Google Patents
Automobile brake drum connecting bolt Download PDFInfo
- Publication number
- CN201439792U CN201439792U CN2009201216332U CN200920121633U CN201439792U CN 201439792 U CN201439792 U CN 201439792U CN 2009201216332 U CN2009201216332 U CN 2009201216332U CN 200920121633 U CN200920121633 U CN 200920121633U CN 201439792 U CN201439792 U CN 201439792U
- Authority
- CN
- China
- Prior art keywords
- brake drum
- connecting bolt
- head
- screw rod
- 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 - Fee Related
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- Braking Arrangements (AREA)
Abstract
The utility model relates to an automobile brake drum connecting bolt which comprises a screw rod and a head part, wherein the ring-shaped end surface of the head part is provided with a ring-shaped groove used for placing a sealing ring, and the sealing ring is arranged inside the groove when in assembly. After the bolt and the brake drum are in press fit, the sealing ring inside the groove is pressed to be deformed so as to be fully filled inside the groove, so that the brake drum can be closely sealed with the bolt, and leakage hardly occurs.
Description
Technical field:
The utility model relates to a kind of fastening piece, relates in particular to a kind of brake drum for automobile connecting bolt.
Background technique:
In the prior art, automobile brake drum is to be installed on the automotive body by connecting bolt.As shown in Figure 3, brake drum for automobile connecting bolt of the prior art comprises head 3 and screw rod 2, and described screw rod 2 is made up of polished rod three parts of the afterbody of straight knurling, the middle part that is provided with screw thread and head.Described bolt and brake drum pressing, the straight knurling by screw rod 2 afterbodys are subjected to highly extruding to produce plastic deformation to make bolt fastening with being connected of brake drum and play the effect that brake drum is sealed.
But prior art has following shortcoming: in the actual using process, after bolt and the brake drum assembling, the seal action that the distortion of dependence screw rod 2 afterbody straight knurling is played is limited, and the situation of leakage appears in brake drum through regular meeting.
The model utility content:
The technical problems to be solved in the utility model is to provide a kind of and seal tight brake drum for automobile connecting bolt with brake drum assembling back.
The technical solution of the utility model is: comprise screw rod and head, the annular end face of described head is provided with the annular groove that is used to place seal ring.
After adopting said structure, the utility model compared with prior art has the following advantages:
The head of brake drum for automobile connecting bolt of the present utility model is provided with annular groove, and seal ring is set in groove during assembling.After bolt and the brake drum pressing, the seal ring compressive deformation in the groove also is full of groove, so just can make the sealing between brake drum and the bolt tight, the difficult leakage.
Described annular groove can be positioned at the joint of head and screw rod.
Described screw rod is made up of polished rod three parts of the afterbody that is provided with straight knurling, the middle part that is provided with screw thread and head.
Description of drawings:
Fig. 1 is the assembly structure schematic representation of the utility model brake drum for automobile connecting bolt;
Fig. 2 is the structural representation of the utility model brake drum for automobile connecting bolt;
Fig. 3 is the structural representation of brake drum for automobile connecting bolt in the prior art;
Shown in the figure 1, brake drum; 2, screw rod; 3, head; 4, groove.
Embodiment:
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 1 and Figure 2, the utility model brake drum for automobile connecting bolt comprises screw rod 2 and head 3, described screw rod 2 is made up of polished rod three parts of the afterbody that is provided with straight knurling, the middle part that is provided with screw thread and head, the annular end face of described head 3 is provided with the annular groove 4 that is used to place seal ring, this annular groove 4 is positioned at the joint (the chamfering place of head 3 and screw rod 2 just) of head 3 and screw rod 2, in annular groove 4 seal ring is set.
After the utility model brake drum for automobile connecting bolt and the brake drum pressing, thereby the straight knurling of bolt shank 2 afterbodys is subjected to highly extruding to produce plastic deformation and brake drum 1 is connected be arranged on fastening the time also compressive deformation and be full of groove 4 and play seal action to brake drum 1 of the interior seal ring of annular groove 4 with bolt, by nut brake drum 1 is installed on the automotive body again.
Claims (3)
1. a brake drum for automobile connecting bolt comprises screw rod (2) and head (3), it is characterized in that: the annular end face of described head (3) is provided with the annular groove (4) that is used to place seal ring.
2. according to the described automobile brake drum connecting bolt of claim 1, it is characterized in that: described annular groove (4) is positioned at the joint of head (3) and screw rod (2).
3. according to claim 1 or 2 described brake drum for automobile connecting bolts, it is characterized in that: described screw rod (2) is made up of polished rod three parts of the afterbody of straight knurling, the middle part that is provided with screw thread and head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201216332U CN201439792U (en) | 2009-06-02 | 2009-06-02 | Automobile brake drum connecting bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201216332U CN201439792U (en) | 2009-06-02 | 2009-06-02 | Automobile brake drum connecting bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201439792U true CN201439792U (en) | 2010-04-21 |
Family
ID=42544462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201216332U Expired - Fee Related CN201439792U (en) | 2009-06-02 | 2009-06-02 | Automobile brake drum connecting bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201439792U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852604A (en) * | 2015-05-27 | 2015-08-19 | 江苏云意电气股份有限公司 | Structure of self-locking screw of automobile generator |
| CN107630897A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Locking straight burr screw |
| CN107630913A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Adjustable locking reticulate pattern screw |
-
2009
- 2009-06-02 CN CN2009201216332U patent/CN201439792U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852604A (en) * | 2015-05-27 | 2015-08-19 | 江苏云意电气股份有限公司 | Structure of self-locking screw of automobile generator |
| CN107630897A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Locking straight burr screw |
| CN107630913A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Adjustable locking reticulate pattern screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20120602 |