CN204113843U - A kind of resistant to elevated temperatures fastening piece - Google Patents
A kind of resistant to elevated temperatures fastening piece Download PDFInfo
- Publication number
- CN204113843U CN204113843U CN201420516453.5U CN201420516453U CN204113843U CN 204113843 U CN204113843 U CN 204113843U CN 201420516453 U CN201420516453 U CN 201420516453U CN 204113843 U CN204113843 U CN 204113843U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- protective housing
- boss
- nut
- resistant
- 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
Abstract
The utility model discloses a kind of resistant to elevated temperatures fastening piece; Belong to technical field of fastening; Its technological points comprises interconnective nut and screw rod, screw rod has been threaded nut, and wherein said screw rod free end is provided with boss, and the external diameter of boss is less than outer screw diameter, boss is radially provided with positioning through hole, outer wall of boss is provided with some locating slots along screw axial; Screw rod free end is covered with protective housing, and protective housing sidewall is provided with the counterbore corresponding with locating slot, is provided with the internal thread through hole corresponding with locating slot at counterbore inner bottom part, is connected with fastening screw at internal thread through hole internal thread; Described nut is positioned at protective housing, between protective housing inwall and nut and screw rod, be formed with packing space, is filled with the first refractory glue mud layer in packing space; The utility model aims to provide a kind of rational in infrastructure, easy to use and respond well resistant to elevated temperatures fastening piece; For being fastenedly connected between two parts.
Description
Technical field
The utility model relates to a kind of fastening piece, more particularly, particularly relates to a kind of high temperature resistant fastening piece that can use in the confined space.
Background technique
In manufacture of cement industry, need to use a large amount of machinery, all devices, requisite part is exactly bolt and securing means.In the maintenance process of equipment, often there will be bolt due to life time comparatively of a specified duration, by the problem of the corrosion-deformations such as cement powders, cause bolt to be often difficult to take out.In addition, when some plant maintenance, there will be the problem that cannot operate bolt by spatial constraints, such as, in some position, operator can only see wherein one of bolt, and this just requires at least to have two operator to carry out coordinating the operation such as fastening grade could implementing bolt; In addition, in the position that some space is less, cannot conventional tool be adopted to operate, greatly will increase work difficulty and the workload of attendant like this, and then cause maintenance time long, the normal problem of producing of impact.
Model utility content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure, easy to use and respond well resistant to elevated temperatures fastening piece.
The technical solution of the utility model is achieved in that a kind of resistant to elevated temperatures fastening piece, comprise interconnective nut and screw rod, screw rod has been threaded nut, wherein said screw rod free end is provided with boss, the external diameter of boss is less than outer screw diameter, boss is radially provided with positioning through hole, outer wall of boss is provided with some locating slots along screw axial; Screw rod free end is covered with protective housing, and protective housing sidewall is provided with the internal thread through hole corresponding with locating slot, is connected with fastening screw at internal thread through hole internal thread, and protective housing to coordinate with locating slot by fastening screw that to be fixed on screw rod free end peripheral; Described nut is positioned at protective housing, between protective housing inwall and nut and screw rod, be formed with packing space, is filled with the first refractory glue mud layer in packing space.
In the resistant to elevated temperatures fastening piece of above-mentioned one, described boss is taper platform.
In the resistant to elevated temperatures fastening piece of above-mentioned one, protective housing inwall is distributed with some first location thorns.
In the resistant to elevated temperatures fastening piece of above-mentioned one, described protective housing outer wall is distributed with some second location thorns, protective housing outer wall is enclosed with the second refractory glue mud layer.
After the utility model adopts said structure, first existing screw rod free end one-body molded go out the external diameter boss less than screw rod, like this, when bolt not easily takes out, the instruments such as hammer can be adopted to knock boss makes bolt deviate from, like this, can avoid directly knocking screw rod causes thread distortion that bolt is scrapped.Secondly, boss arranges radial positioning through hole, this just make less position, some space or operator can only operating screw one end time, elongated element can be adopted to insert in positioning through hole, bolt is positioned, and then locking nut, simultaneously again in conjunction with the protective housing of nut periphery, form structure simply but very practical securing means.The design of protective housing inside dimension is greater than nut, can refractory glue mud layer be set inside and outside protective housing, reaches resistant to elevated temperatures object.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
In figure: nut 1, screw rod 2, nut 3, boss 4, positioning through hole 4a, locating slot 4b, protective housing 5, internal thread through hole 5a, the first location thorn 5b, the second location thorn 5c, fastening screw 6, first refractory glue mud layer 7, second refractory glue mud layer 8.
Embodiment
Consult shown in Fig. 1, the resistant to elevated temperatures fastening piece of one of the present utility model, comprise interconnective nut 1 and screw rod 2, screw rod 2 has been threaded nut 3, and described screw rod 2 free end is provided with boss 4, and boss 4 is preferably taper platform, so convenient installation, cone structure can play leading role.The external diameter of boss 4 is less than screw rod 2 external diameter, like this, when bolt not easily takes out, external object can be adopted to knock boss 4 bolt is deviate from, avoid directly knocking screw rod 2 and cause thread to be out of shape, bolt is scrapped.Boss 4 is radially provided with positioning through hole 4a, the setting of positioning through hole 4a, the convenience that bolt is used is significantly improved, and is mainly reflected in: (1) can wear elongated bounding means, prevents bolt looseness from coming off; (2) elongated locating piece can be worn, bolt is positioned, when operator cannot touch nut 1, tightening nut on bolt can be realized quickly and easily.
Meanwhile, boss 4 outer wall is axially arranged with some locating slot 4b along screw rod 2; Screw rod 2 free end is covered with protective housing 5, protective housing 5 sidewall is provided with the internal thread through hole 5a corresponding with locating slot 4b, be connected with fastening screw 6 at internal thread through hole 5a internal thread, protective housing 5 to coordinate with locating slot 4b by fastening screw 6 that to be fixed on screw rod 2 free end peripheral; Described nut 3 is positioned at protective housing 5, between protective housing 5 inwall and nut 3 and screw rod 2, be formed with packing space, is filled with the first refractory glue mud layer 7 in packing space.
Further, protective housing 5 inwall is distributed with some first location thorn 5b, the structure of the first location thorn 5b can be varied, object is the area of contact in order to increase between protective housing 5 and the first refractory glue mud layer 7, and make, between protective housing 5 and the first refractory glue mud layer 7, there is certain restraining function, effectively can prevent the loose or dislocation of the first refractory glue mud layer 7.Extend the working life of the first refractory glue mud layer 7.Further, protective housing 5 outer wall is distributed with some second location thorn 5c, protective housing 5 outer wall is enclosed with the second refractory glue mud layer 8.Adopt this structure, the working life of securing means can be extended further.
The utility model is especially suitable in high temperature kiln, effectively can extend the life-span of fastening piece, and then improves the working life of equipment.
Above illustrated embodiment is better embodiment of the present utility model, only be used for conveniently the utility model being described, not any pro forma restriction is done to the utility model, have in any art and usually know the knowledgeable, if do not depart from the utility model carry in the scope of technical characteristics, utilize the utility model disclose the Equivalent embodiments changing or modify in the done local of technology contents, and do not depart from technical characteristics content of the present utility model, all still belong in the scope of the utility model technical characteristics.
Claims (4)
1. a resistant to elevated temperatures fastening piece, comprise interconnective nut (1) and screw rod (2), screw rod (2) has been threaded nut (3), it is characterized in that, described screw rod (2) free end is provided with boss (4), the external diameter of boss (4) is less than screw rod (2) external diameter, boss (4) is radially provided with positioning through hole (4a), boss (4) outer wall is axially arranged with some locating slots (4b) along screw rod (2); Screw rod (2) free end is covered with protective housing (5), protective housing (5) sidewall is provided with the internal thread through hole (5a) corresponding with locating slot (4b), be connected with fastening screw (6) at internal thread through hole (5a) internal thread, protective housing (5) to coordinate with locating slot (4b) by fastening screw (6) that to be fixed on screw rod (2) free end peripheral; Described nut (3) is positioned at protective housing (5), between protective housing (5) inwall and nut (3) and screw rod (2), be formed with packing space, in packing space, be filled with the first refractory glue mud layer (7).
2. the resistant to elevated temperatures fastening piece of one according to claim 1, is characterized in that, described boss (4) is taper platform.
3. the resistant to elevated temperatures fastening piece of one according to claim 1, is characterized in that, protective housing (5) inwall is distributed with some first location thorn (5b).
4. the resistant to elevated temperatures fastening piece of one according to claim 3, it is characterized in that, described protective housing (5) outer wall is distributed with some second location thorn (5c), protective housing (5) outer wall is enclosed with the second refractory glue mud layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420516453.5U CN204113843U (en) | 2014-09-09 | 2014-09-09 | A kind of resistant to elevated temperatures fastening piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420516453.5U CN204113843U (en) | 2014-09-09 | 2014-09-09 | A kind of resistant to elevated temperatures fastening piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113843U true CN204113843U (en) | 2015-01-21 |
Family
ID=52331157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420516453.5U Expired - Fee Related CN204113843U (en) | 2014-09-09 | 2014-09-09 | A kind of resistant to elevated temperatures fastening piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113843U (en) |
-
2014
- 2014-09-09 CN CN201420516453.5U patent/CN204113843U/en not_active Expired - Fee Related
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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: 20150121 Termination date: 20160909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |