CN201318367Y - Cement bolt - Google Patents
Cement bolt Download PDFInfo
- Publication number
- CN201318367Y CN201318367Y CNU2008201573477U CN200820157347U CN201318367Y CN 201318367 Y CN201318367 Y CN 201318367Y CN U2008201573477 U CNU2008201573477 U CN U2008201573477U CN 200820157347 U CN200820157347 U CN 200820157347U CN 201318367 Y CN201318367 Y CN 201318367Y
- Authority
- CN
- China
- Prior art keywords
- threads
- cement
- bolt
- screw
- utility
- 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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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a cement bolt, which comprises threads arranged on a screw; two low-pinch threads are arranged between the threads; a triangle groove is arranged between the two low-pinch threads. In the cement bolt of the utility model, alternation is carried out on the threads according to the characteristics of cement and concrete based on the original normal threads. Compared with the normal cement bolt, the cement bolt improves a drawing force and a locking force, drains the sand grains extruded during the tapping process into the groove by using the groove between the two low-pinch threads, and increases the drawing force between nails and a substance to be fastened by using the bulky characteristic of the sand grains, thus greatly improving the fastening force of the bolt, and improving the drawing force. The cost is consistent with that of the common cement bolt. The cement bolt is not needed to be assembled and is more convenient to be used.
Description
Technical field
The utility model relates to a kind of screw, especially relates to a kind of being specifically designed to and attacks wall, attacks various bricks and various concrete cement screw.
Background technique
Be used at present the wall object fixing mainly be to adopt swell fixture, EXPANSION ANCHOR BOLTS and cement screw, swell fixture and EXPANSION ANCHOR BOLTS need on the wall boring in advance, refill and join service sleeve, to equipment or need fastening object to fix, its use cumbersome and cost than higher.Be used for civilian Minor Construction five metals and the cement screw is main, but it is more more convenient than swell fixture, EXPANSION ANCHOR BOLTS use, must not assembles, cost price is wanted considerably cheaper than gecko, but the pulling capacity that it can bear is lower.
The model utility content
The purpose of this utility model is at the problems referred to above, the cement screw that provide a kind of simple in structure, easy to use, cost is low, pulling capacity is higher.
For achieving the above object, the utility model adopts following technological scheme:
A kind of cement screw is included in the screw thread that is provided with on the screw rod, is provided with low pitch thread between described screw thread.
Described low pitch thread is two, is provided with triangular groove between these two low pitch threads.
Compared with prior art, cement screw of the present utility model is that according to cement and concrete characteristics, double thread has been done change on former conventional screw thread basis, compares with conventional cement screw, and it has promoted pulling capacity and coupling mechanism force.It utilizes the groove between the two low pitch threads, and the sand grains of extruding in the tapping process is discharged between the groove, utilizes the thick characteristic of sand grains particle, increase the pulling capacity of nail and fastened object, promoted the fastening force of screw greatly, promoted pulling capacity, cost is compared consistent with the portland cement screw.It need not assembling, uses also more convenient.
Description of drawings
Fig. 1 is the outline drawing of the utility model cement screw.
Fig. 2 is the stereogram for its screw rod of cement screw among Fig. 1.
Fig. 3 is the A place enlarged view for Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2 and Fig. 3, shown in the figure a kind of cement screw, it is included in the screw thread 1 that is provided with on the screw rod, is provided with low pitch thread 2 between described screw thread 1.Described low pitch thread 2 is two, is provided with triangular groove 3 between these two low pitch threads 2.
The above only is a 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 (2)
1. a cement screw is included in the screw thread that is provided with on the screw rod, it is characterized in that: be provided with low pitch thread between described screw thread.
2. cement screw according to claim 1 is characterized in that: described low pitch thread is two, is provided with triangular groove between these two low pitch threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201573477U CN201318367Y (en) | 2008-12-18 | 2008-12-18 | Cement bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201573477U CN201318367Y (en) | 2008-12-18 | 2008-12-18 | Cement bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318367Y true CN201318367Y (en) | 2009-09-30 |
Family
ID=41197132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201573477U Expired - Fee Related CN201318367Y (en) | 2008-12-18 | 2008-12-18 | Cement bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318367Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008062A (en) * | 2013-02-26 | 2015-10-28 | 喜利得股份公司 | Method for producing a concrete screw |
| CN105431643A (en) * | 2013-08-13 | 2016-03-23 | 费希尔厂有限责任两合公司 | Concrete screw |
-
2008
- 2008-12-18 CN CNU2008201573477U patent/CN201318367Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008062A (en) * | 2013-02-26 | 2015-10-28 | 喜利得股份公司 | Method for producing a concrete screw |
| CN105431643A (en) * | 2013-08-13 | 2016-03-23 | 费希尔厂有限责任两合公司 | Concrete screw |
| CN105431643B (en) * | 2013-08-13 | 2017-05-24 | 费希尔厂有限责任两合公司 | Concrete screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yan Cunlu Inventor after: An Zhiyong Inventor before: Yan Cunlu Inventor before: An Zhiyong Inventor before: Feng Chengzhong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YAN CUNLU; AN ZHIYONG; FENG CHENGZHONG TO: YAN CUNLU; AN ZHIYONG |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI AUTOCRAFT CO., LTD. Free format text: FORMER NAME: AUTOCRAFT INDUSTRIAL(SHANGHAI)LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hunan Pudong Kangqiao Industrial Zone, Shanghai City Road 201300 No. 2502 Patentee after: SHANGHAI AUTOCRAFT CO., LTD. Address before: Hunan Pudong Kangqiao Industrial Zone, Shanghai City Road 201300 No. 2502 Patentee before: Autocraft Industrial ( Shanghai ) Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20161218 |