CN202851582U - Special connecting element - Google Patents
Special connecting element Download PDFInfo
- Publication number
- CN202851582U CN202851582U CN 201220390604 CN201220390604U CN202851582U CN 202851582 U CN202851582 U CN 202851582U CN 201220390604 CN201220390604 CN 201220390604 CN 201220390604 U CN201220390604 U CN 201220390604U CN 202851582 U CN202851582 U CN 202851582U
- Authority
- CN
- China
- Prior art keywords
- boss
- special
- screw rod
- upper portion
- connecting element
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a special connecting element which is high in fastening property. The special connecting element comprises a screw rod and a screw cap, wherein the base portion of the screw rod is a special-shaped boss, the bottom of the boss is a cylinder, two opposite edges on the upper portion of the boss are planes parallel to each other, and the bottom of the boss and the upper portion of the boss are in an integrated structure. The base portion of the screw rod is in a special-shaped boss structure, the bottom of the boss is the cylinder, and two opposite edges on the upper portion of the boss are the planes parallel to each other, so when the special connecting element is used, the upper portion of the boss is embedded into groove-shaped holes in two protective plates, the two planes on the upper portion of the boss are respectively close to two corresponding planes in the groove-shaped holes so that the two protective plates can not rotate and move, and therefore the aims of clamping and fixing the two protective plates and preventing the two protective plates from oppositely rotating are achieved.
Description
Technical field
The utility model relates to a kind of link.
Background technique
The claimant has developed a cover coal mine fully-mechanized mining with moving holder device, the single-column connecting base backplate of this device adopts general bolton when helping backplate to be connected with chute, bolt can only lean on fastening force that two backplates are clamped, but two plates also can produce the phenomenon of relative sliding or rotation during work, because the attachment hole of two backplates all adopts the grooved hole, the cross section of screw rod be circular constraint not rotatablely moving of two backplates, the time one is long, makes easily nut loosening.
Summary of the invention
The purpose of this utility model provides the higher special connecting piece of a kind of fastening performance.
The technical solution of the utility model is: comprise screw rod and nut, the base portion of described screw rod is special-shaped boss, and this boss bottom be cylindrical body, and two relative edges on boss top are parallel plane each other, and boss bottom and boss top are structure as a whole.
Because adopting the base portion of screw rod in the utility model is the structure of special-shaped boss, and this boss bottom is cylindrical body, two relative edges on boss top are parallel plane each other, during use, boss top embeds in the grooved hole of two backplates, two planes on boss top respectively with the grooved hole in corresponding two planes press close to, two backplates can not be produced rotatablely move, thereby reach two backplates that to be fixedly clamped, can prevent that again two backplates from counterrotating purpose occuring.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but does not consist of any restriction of the present utility model.Shown in Figure 1, the utility model comprises screw rod and nut, and the base portion of described screw rod is special-shaped boss 1, and this boss 1 bottom is cylindrical body, and two relative edges on boss 1 top are parallel plane each other, and boss 1 bottom and boss 1 top are structure as a whole.
During use, boss 1 top is penetrated in the grooved hole of two backplates, two planes that make boss 1 top respectively with the grooved hole in corresponding two planes press close to, because this boss 1 bottom is cylindrical body, this cylindrical diameter is greater than the distance between the both sides, grooved hole, and therefore, boss 1 can not pass the grooved hole, again nut is screwed on the screw rod, screws nut and with two fastening getting final product of backplate.After above-mentioned installation, two backplates can not be produced rotatablely move, thereby reach two backplates that can be fixedly clamped, can prevent that again two backplates from counterrotating purpose occuring.
Claims (1)
1. special link, comprise screw rod and nut, it is characterized in that: the base portion of described screw rod is special-shaped boss (1), and this boss (1) bottom is cylindrical body, two relative edges on boss (1) top are parallel plane each other, and boss (1) bottom is structure as a whole with boss (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390604 CN202851582U (en) | 2012-08-08 | 2012-08-08 | Special connecting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390604 CN202851582U (en) | 2012-08-08 | 2012-08-08 | Special connecting element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851582U true CN202851582U (en) | 2013-04-03 |
Family
ID=47982788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220390604 Expired - Fee Related CN202851582U (en) | 2012-08-08 | 2012-08-08 | Special connecting element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851582U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788072A (en) * | 2012-08-08 | 2012-11-21 | 山西潞安集团司马煤业有限公司 | Purpose-made connecting piece |
| CN103367072A (en) * | 2013-06-28 | 2013-10-23 | 河南省电力公司信阳供电公司 | Drop-out fuse |
| CN104564952A (en) * | 2013-10-11 | 2015-04-29 | 珠海格力电器股份有限公司 | Dead lever and have its positioning control device |
| CN108506310A (en) * | 2018-06-20 | 2018-09-07 | 海盐东盛紧固件制造有限公司 | A kind of installation bolt firmly installed |
-
2012
- 2012-08-08 CN CN 201220390604 patent/CN202851582U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788072A (en) * | 2012-08-08 | 2012-11-21 | 山西潞安集团司马煤业有限公司 | Purpose-made connecting piece |
| CN103367072A (en) * | 2013-06-28 | 2013-10-23 | 河南省电力公司信阳供电公司 | Drop-out fuse |
| CN104564952A (en) * | 2013-10-11 | 2015-04-29 | 珠海格力电器股份有限公司 | Dead lever and have its positioning control device |
| CN108506310A (en) * | 2018-06-20 | 2018-09-07 | 海盐东盛紧固件制造有限公司 | A kind of installation bolt firmly installed |
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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: 20130403 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |