CN202716825U - Body ground structure - Google Patents
Body ground structure Download PDFInfo
- Publication number
- CN202716825U CN202716825U CN 201220363495 CN201220363495U CN202716825U CN 202716825 U CN202716825 U CN 202716825U CN 201220363495 CN201220363495 CN 201220363495 CN 201220363495 U CN201220363495 U CN 201220363495U CN 202716825 U CN202716825 U CN 202716825U
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- CN
- China
- Prior art keywords
- bolt
- flange
- sleeve nut
- protecting sleeve
- screw rod
- 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 provides a body ground structure. The body ground structure comprises a bolt and a protective sleeve nut which are welded on the body; a threaded hole of the protective sleeve nut is a blind screw hole; a screw of the bolt is screwed into the blind screw hole; the depth of the blind screw hole is more than the length of the screw; the whole screw is covered in an internal chamber of the blind screw hole; and an end surface of a convex edge of the protective sleeve nut is tightly adhered to the end surface of the convex edge of the bolt. According to the body ground structure, the whole screw is covered in the internal chamber of the blind screw hole of the protective sleeve nut, and the end surface of the convex edge of the protective sleeve nut is tightly adhered to the end surface of the convex edge of the bolt, so that surface of the screw and the end surface of the convex edge of the bolt can be prevented from corroding by paint, rainwater and other liquid, and high conductive performance between the bolt and ground harnesses can be ensured.
Description
Technical field
The utility model relates to a kind of automotive body structure, particularly relates to a kind of body earth structure.
Background technology
Nowadays, along with becoming increasingly abundant of automobile electronics kind, the car electrics circuit is day by day complicated, and the frequency of et out of order also increases.According to investigations, having 70% fault to be that body earth is bad causes.During bad earth, problem can appear can't starting, instrument does not show, car light does not work etc.Existing ground structure is to be connected to form by nuts and bolt, and the head of bolt is welded on the vehicle body, and nut is bolted on the screw rod of bolt.Vehicle body outside surface needs japanning, and this ground structure needs japanning in the lump.But in the japanning process, because the screw rod height is greater than height of nut, the outside face that screw rod exceeds the part of nut is coated with lacquer easily, and there is the slit between the head of bolt and the nut, lacquer infiltrates screw rod easily from the slit, electric conductivity between bolt and the bonding wire harness is greatly affected thus, more seriously, in the use afterwards, the bolt surface also is easy to be drenched by rainwater or other liquid, the electric conductivity that these all can have a strong impact between bolt and the bonding wire harness makes very easily et out of order of automobile.
The utility model content
The purpose of this utility model is to provide a kind of and can guarantees to coat with lacquer, rainwater and other liquid can corrosion to the screw surface of bolt, guarantee the body earth structure of electric conductivity good between bolt and the bonding wire harness.
To achieve these goals; technical solution of the present utility model is: a kind of body earth structure; comprise the bolt and the protecting sleeve nut that are welded on the vehicle body; the tapped bore of described protecting sleeve nut is blind screwhole; the screw rod of described bolt is bolted in the blind screwhole; the degree of depth of described blind screwhole is greater than the length of described screw rod, and described screw rod all is housed in the inner chamber of described blind screwhole.
Body earth structure of the present utility model; wherein; the lower end of described protecting sleeve nut is provided with along the first flange that circumferentially extends a circle, and the lower end of the screw rod of described bolt is provided with along the second flange that circumferentially extends a circle, and described the first flange and the second flange fit tightly.
Body earth structure of the present utility model, wherein, the outside face of described the first flange to the distance of protecting sleeve nut axis greater than the outside face of the second flange distance to the bolt axis.
Body earth structure of the present utility model, wherein, the outside face of described the second flange is to the distance of the bolt axis coupling link outside radius greater than the bonding wire harness.
Body earth structure of the present utility model, wherein, described first and second flange is circular or the polygon column.
After adopting such scheme; body earth structure of the present utility model is by being spirally connected fixing with protecting sleeve nut and screw rod; the blind screwhole degree of depth of protecting sleeve nut is greater than the screw rod height; make screw rod all be housed in the blind screwhole inner chamber of protecting sleeve nut; simultaneously; when the protecting sleeve nut screwing clamping; protecting sleeve nut flange end face and bolt flange end face fit tightly; effectively guarantee lacquer, rainwater and other liquid can corrosion to screw surface and the flange end face of bolt; after the bonding wire harness is installed, guarantee electric conductivity good between bolt and the bonding wire harness.
Body earth structure of the present utility model; set up the second flange in the screw rod lower end; in protecting sleeve nut lower end the first flange is set; after guaranteeing that bolt and protecting sleeve nut are spirally connected; first; the two flanges sealing paste is combined; the outside face of the first flange to the distance of protecting sleeve nut axis greater than the outside face of the second flange distance to the bolt axis; when carrying out spray painting operation or being watered when drenching by rainwater; the first flange plays the effect of blocking, and further guarantees lacquer; rainwater and other liquid can be by first; slit corrosion between the two flanges is to screw surface and the flange end face of bolt.
The present invention further effect is: by the outside face of the second flange is designed to coupling link outside radius greater than the bonding wire harness to the distance of bolt axis; can guarantee like this to be installed between the double-screw bolt and protecting sleeve nut of the utility model ground structure when the bonding wire harness; and in the time of between first and second flange; the bonding wire harness is not in use by rainwater or other liquid corrosion; guarantee the electric conductivity of bonding wire harness, further reduced the complete vehicle fault rate.
Description of drawings
Fig. 1 is the structural representation of body earth structure of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic;
Fig. 3 is the stereo decomposing connection diagram that body earth structure of the present utility model cooperates with the bonding wire harness;
Fig. 4 is the connection diagram that body earth structure of the present utility model cooperates with the bonding wire harness.
Below in conjunction with accompanying drawing, by embodiment the utility model is described further:
The specific embodiment
As depicted in figs. 1 and 2, body earth structure of the present utility model comprises the bolt 1 and the protecting sleeve nut 2 that are welded on the vehicle body.The head of bolt 1 and vehicle body sheet metal welding.The lower end of protecting sleeve nut 2 is provided with tapped bore.The tapped bore of protecting sleeve nut 2 is blind screwhole 3.The screw rod on bolt 1 top is bolted in the blind screwhole 3.Wherein, the degree of depth of blind screwhole 3 is greater than the length of screw rod, and screw rod all is housed in the inner chamber of blind screwhole 3 of protecting sleeve nut 2.
Body earth structure of the present utility model is by being spirally connected fixing with protecting sleeve nut and screw rod; the blind screwhole degree of depth of protecting sleeve nut is greater than the screw rod height; the screw rod of bolt all is housed in the blind screwhole inner chamber of protecting sleeve nut; simultaneously; when the protecting sleeve nut screwing clamping; protecting sleeve nut flange end face and bolt flange end face fit tightly; effectively guarantee lacquer, rainwater and other liquid can corrosion to screw surface and the flange end face of bolt; after the bonding wire harness is installed, guarantee electric conductivity good between bolt and the bonding wire harness.
Body earth structure of the present utility model, wherein, the lower end of protecting sleeve nut 2 is processed with along the first flange 4 that circumferentially extends a circle.
In the present embodiment, the first flange 4 is circular ring.In other embodiment of the present utility model, the first flange 4 also can for other polygon column structure, repeat no more herein.
Body earth structure of the present utility model, wherein, the lower end of the screw rod of bolt 1 is processed with along the second flange 5 that circumferentially extends a circle.
Body earth structure of the present utility model, wherein, the second flange 5 also can for circular ring or polygon column structure, repeat no more herein.
The outside face of the first flange 4 is to the distance of the protecting sleeve nut 2 axis outside radius greater than the second flange 5.In other words, the outside radius of the first flange 4 is greater than the outside radius of the second flange 5.When protecting sleeve nut 2 was tightened, the first flange 4 and the second flange 5 sealing pastes were combined.
In conjunction with Fig. 3 and shown in Figure 4; when body earth structure of the present utility model in use; the screw rod of protecting sleeve nut 2 from bolt 1 spun down; the coupling link 7 of bonding wire harness 6 one ends is screwed on the screw rod of bolt 1; make coupling link 7 fit in the upper surface of the second flange 5; then protecting sleeve nut 2 is screwed on the screw rod of bolts 1, the upper surface of the first flange 4 and coupling link 7 on it is fitted tightly get final product.
Body earth structure of the present utility model guarantee lacquer, rainwater and other liquid can corrosion to screw surface and the flange end face of bolt 1, guarantee the electric conductivity that bolt 1 and bonding wire harness 6 are good.The outside radius of the second flange 5 is greater than the outside radius of the coupling link 7 of bonding wire harness 6.Can guarantee like this bonding wire harness 6 is installed between the first flange 4 and the second flange 5, can guarantee that bonding wire harness 6 is not in use by rainwater or other liquid corrosion, guarantee the electric conductivity between bolt 1 and the bonding wire harness 6, further reduced the complete vehicle fault rate.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. body earth structure; comprise the bolt (1) and protecting sleeve nut (2) that are welded on the vehicle body; it is characterized in that: the tapped bore of described protecting sleeve nut (2) is blind screwhole (3); the screw rod of described bolt (1) is bolted in the blind screwhole (3); the degree of depth of described blind screwhole (3) is greater than the length of described screw rod, and described screw rod all is housed in the inner chamber of described blind screwhole (3).
2. body earth structure as claimed in claim 1; it is characterized in that: the lower end of described protecting sleeve nut (2) is provided with along the first flange (4) that circumferentially extends a circle; the lower end of the screw rod of described bolt (1) is provided with along the second flange (5) that circumferentially extends a circle, and described the first flange (4) fits tightly with the second flange (5).
3. body earth structure as claimed in claim 2 is characterized in that: the outside face of described the first flange (4) to the distance of protecting sleeve nut (2) axis greater than the outside face of the second flange (5) distance to bolt (1) axis.
4. body earth structure as claimed in claim 3 is characterized in that: the outside face of described the second flange (5) is to the distance of bolt (1) axis coupling link (7) outside radius greater than bonding wire harness (6).
5. such as each described body earth structure of claim 2-4, it is characterized in that: described first and second flange (4,5) is circular or the polygon column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363495 CN202716825U (en) | 2012-07-25 | 2012-07-25 | Body ground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363495 CN202716825U (en) | 2012-07-25 | 2012-07-25 | Body ground structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202716825U true CN202716825U (en) | 2013-02-06 |
Family
ID=47618658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220363495 Expired - Fee Related CN202716825U (en) | 2012-07-25 | 2012-07-25 | Body ground structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202716825U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253320A (en) * | 2013-06-28 | 2014-12-31 | 通用汽车环球科技运作有限责任公司 | Tunable cast grounding block for dry sections |
| CN105552690A (en) * | 2015-12-15 | 2016-05-04 | 北京福田戴姆勒汽车有限公司 | Negative ground bolt installation method for vehicle body in white and vehicle |
| CN106696874A (en) * | 2015-07-28 | 2017-05-24 | 上海汽车集团股份有限公司 | Car body grounding system |
| CN107091270A (en) * | 2017-06-23 | 2017-08-25 | 武汉捷众汽车零部件有限公司 | A kind of new automobile grounding nut |
| CN108626542A (en) * | 2018-07-05 | 2018-10-09 | 威马智慧出行科技（上海）有限公司 | A kind of structure of mounting hole and a kind of fixing piece |
| CN109624889A (en) * | 2019-01-25 | 2019-04-16 | 奇瑞商用车（安徽）有限公司 | A kind of vehicle frame bonding protective device and means of defence |
-
2012
- 2012-07-25 CN CN 201220363495 patent/CN202716825U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253320A (en) * | 2013-06-28 | 2014-12-31 | 通用汽车环球科技运作有限责任公司 | Tunable cast grounding block for dry sections |
| CN106696874A (en) * | 2015-07-28 | 2017-05-24 | 上海汽车集团股份有限公司 | Car body grounding system |
| CN106696874B (en) * | 2015-07-28 | 2019-04-09 | 上海汽车集团股份有限公司 | Vehicle body earthed system |
| CN105552690A (en) * | 2015-12-15 | 2016-05-04 | 北京福田戴姆勒汽车有限公司 | Negative ground bolt installation method for vehicle body in white and vehicle |
| CN107091270A (en) * | 2017-06-23 | 2017-08-25 | 武汉捷众汽车零部件有限公司 | A kind of new automobile grounding nut |
| CN108626542A (en) * | 2018-07-05 | 2018-10-09 | 威马智慧出行科技（上海）有限公司 | A kind of structure of mounting hole and a kind of fixing piece |
| CN109624889A (en) * | 2019-01-25 | 2019-04-16 | 奇瑞商用车（安徽）有限公司 | A kind of vehicle frame bonding protective device and means of defence |
| CN109624889B (en) * | 2019-01-25 | 2022-02-08 | 奇瑞商用车（安徽）有限公司 | Frame bonding protection device and protection method |
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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: 20130206 Termination date: 20210725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |