CN201778252U - Embedded thread positioning sleeve - Google Patents
Embedded thread positioning sleeve Download PDFInfo
- Publication number
- CN201778252U CN201778252U CN2010205231230U CN201020523123U CN201778252U CN 201778252 U CN201778252 U CN 201778252U CN 2010205231230 U CN2010205231230 U CN 2010205231230U CN 201020523123 U CN201020523123 U CN 201020523123U CN 201778252 U CN201778252 U CN 201778252U
- Authority
- CN
- China
- Prior art keywords
- positioning sleeve
- sleeve
- thread positioning
- main body
- embedded
- 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
Links
Images
Abstract
The utility model relates to an embedded thread positioning sleeve, a centre hole with internal thread is formed on a main body of the sleeve. The embedded thread positioning sleeve is characterized in that a convex ring is formed on the outer circumferential surface of the lower end part of the main body of the sleeve; and multiple bulges extending upwards along the outer side wall of the main body of the sleeve are arranged on the convex ring. Compared with the prior art, the sleeve is prevented from rotating in concrete and from being axially pulled out by a bolt through the convex ring and the multiple bulges on the lower end part, therefore, the embedded thread positioning sleeve can be widely applied to the engineering projects such as concrete and the like; particularly, when the embedded thread positioning sleeve is embedded in a concrete sleeper, the connection strength between the embedded thread positioning sleeve with the concrete sleeper can be obviously improved, and thus the fastening strength and tensile strength between the embedded thread positioning sleeve with fasteners, such as the bolt and the like, can be improved; and besides, the embedded thread positioning sleeve is simple in structure and convenient for processing.
Description
Technical field
The utility model relates to a kind of locating sleeve of threaded fastener, specifically refers to a kind of locating sleeve that can be embedded in various basic materials such as the concrete.
Background technology
At present, the sleeper of rim under railway track adopts the steel concrete sleeper mostly, has the groove that is located for rail at the two ends of this sleeper, be provided with bolt in the groove, when steel rail laying after on the groove, with nut rail is fastened on the bolt, to realize the fixing of rail and sleeper.Adopt said structure, though can realize the location of rail, because nut and part bolt all expose to rail, service time one is long, corrosion occurs easily and influences the tautness of rail and sleeper.
For this reason, people design at steel concrete sleeper embedded nut, for just having disclosed sleeper in the patent documentation of CN2392805Y, two perforation are set in the groove of this sleeper as Chinese patent notice of authorization number, in each perforation, are embedded with nut with built-in nut.During installation, pass the rail folder with bolt and extend into the interior nut place of groove perforation again, bolt is screwed in the location that nut can be realized rail.But, will influence both tautnesses, and then can influence the safety of whole engineering because the part that is spirally connected of nut and bolt is shorter.
Also there is patent documentation to be disclosed in locating sleeve buried beforehand in the sleeper, as the patent documentation of Chinese patent CN2871614Y.But the structure of this this locating sleeve is comparatively complicated.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned prior art present situation, provides a kind of structure simple relatively, and can improve the pre-buried type screw thread locating sleeve of fastening strength and tensile strength equally.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of pre-buried type screw thread locating sleeve, axially have tapped centre bore on the main body of this sleeve pipe, its feature in: have a protruding circle on the bottom outer peripheral face of described casing main body, on this flange, be provided with a plurality of along the upwardly extending projection of described casing main body lateral wall.
As preferred version of the present utility model, described convex design has four, and evenly distributes respectively.The pressure that produces in process of setting when concrete will act on this sleeve pipe equably like this, prevent that stress from concentrating, and the torsion of torque also can further improve anti-pulling intensity simultaneously when can bear bigger switching.
In above-mentioned each scheme, described internal thread under the requirement of satisfying bonding strength, improves and bolted convenience like this to open on the lower part of described centre bore to well.
Compared with prior art, the utility model utilizes protruding circle and a plurality of projection of lower end, can stop sleeve pipe in concrete, to rotate, also can stop to pulling out by bolt shaft, thereby can improve and basic material such as concrete between bonding strength, and then can improve fastening strength and tensile strength with securing members such as bolts, and the utility model is simple in structure, and easy to process.
Description of drawings
Fig. 1 is the plan structure schematic diagram of the utility model embodiment;
Fig. 2 be among Fig. 1 A-A to sectional view.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, axially have tapped centre bore 2 on the main body 1 of this pre-buried type screw thread locating sleeve, have a protruding circle 3 on the bottom outer peripheral face of this casing main body, on this protruding circle, be provided with a plurality of along casing main body lateral wall upwardly extending protruding 4.In the present embodiment, convex design has four, and evenly distributes respectively.Internal thread is opened on the lower part of centre bore simultaneously, promptly the bottom of centre bore is divided into screwed hole, and top is divided into unthreaded hole.
Locating sleeve in the present embodiment can utilize above-mentioned protruding circle and four projectioies, improve and basic material between bonding strength, thereby can be widely used in the object of construction production such as concrete, especially when it is embedded in concrete sleeper, bolt is screwed in the location that the screwed hole in this locating sleeve can be realized rail, and this locating sleeve can improve fastening strength and the tensile strength that connects.
Claims (3)
1. pre-buried type screw thread locating sleeve, axially have tapped centre bore on the main body of this sleeve pipe, its feature in: have a protruding circle on the bottom outer peripheral face of described casing main body, on this protruding circle, be provided with a plurality of along the upwardly extending projection of described casing main body lateral wall.
2. pre-buried type screw thread locating sleeve according to claim 1 is characterized in that: describedly be raised with four, and evenly distribute respectively.
3. pre-buried type screw thread locating sleeve according to claim 1 and 2, it is characterized in that: described internal thread is opened on the lower part of described centre bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205231230U CN201778252U (en) | 2010-09-07 | 2010-09-07 | Embedded thread positioning sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205231230U CN201778252U (en) | 2010-09-07 | 2010-09-07 | Embedded thread positioning sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778252U true CN201778252U (en) | 2011-03-30 |
Family
ID=43791469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205231230U Expired - Fee Related CN201778252U (en) | 2010-09-07 | 2010-09-07 | Embedded thread positioning sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778252U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959606A (en) * | 2019-04-29 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | The device of on-site test gunite concrete and country rock bonding strength test |
| CN112649137A (en) * | 2020-12-14 | 2021-04-13 | 太原重工工程技术有限公司 | Stress monitoring device of embedded bolt |
-
2010
- 2010-09-07 CN CN2010205231230U patent/CN201778252U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959606A (en) * | 2019-04-29 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | The device of on-site test gunite concrete and country rock bonding strength test |
| CN112649137A (en) * | 2020-12-14 | 2021-04-13 | 太原重工工程技术有限公司 | Stress monitoring device of embedded bolt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156446B (en) | For can crush or fragile material in be arranged threaded fasteners device and method | |
| CN201778252U (en) | Embedded thread positioning sleeve | |
| CN201818611U (en) | Pressing core-pulling type wedge screw | |
| CN209146109U (en) | A kind of stop nut structure | |
| CN110145133A (en) | A kind of assembled one off houses | |
| CN207961229U (en) | A kind of solid lock nut | |
| CN109764052A (en) | A kind of stop nut structure | |
| CN205744788U (en) | One presses solidly nut retainer | |
| CN209654404U (en) | A kind of stop nut structure | |
| CN208311223U (en) | A kind of Split type bolt | |
| CN202215557U (en) | All-split nut with limit boss for supporting anchor bolt | |
| CN201605671U (en) | Pull-resistance pre-buried threaded fastening element positioning sleeve pipe | |
| CN205715168U (en) | A kind of efficiently fastening bolt | |
| CN203796696U (en) | Grouting screw | |
| CN202418188U (en) | Radial high-pressure stop nut | |
| CN201250658Y (en) | Lifting bolt sleeve for tunnel lining | |
| CN205709591U (en) | The novel flexible attachment device of derrick crane | |
| CN219101806U (en) | Subway contact rail base embedded anchor bolt | |
| CN207715512U (en) | A kind of drum type brake anti-theft bolt | |
| CN110142708A (en) | A kind of mold repair fixture | |
| CN102797199A (en) | Rail fixing device | |
| CN201425052Y (en) | Antitheft screw with three different kinds of threads and capable of screwing in and out | |
| CN2620123Y (en) | Preburied plastic bolt cover for steel reinforced concrete | |
| CN202182097U (en) | Anchor rod nut with high reliability | |
| CN202123568U (en) | Depth-adjustable limiting plate used for high speed rail construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO JINWEI FASTENERS GROUP CO., LTD. Free format text: FORMER NAME: NINGBO JINWEI STANDARD FASTENERS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Kaohsiung Toyama District Beilun road 315803 Zhejiang city of Ningbo province (No. 1 Ningbo Jinwei Standard Parts Co., Ltd.) Patentee after: Ningbo Jinwei Fasteners Group Co., Ltd. Address before: Kaohsiung Toyama District Beilun road 315803 Zhejiang city of Ningbo Province, No. 1 Patentee before: Ningbo Jinwei Standard Part Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20130907 |