CN202056164U - Manual inspection bolt - Google Patents
Manual inspection bolt Download PDFInfo
- Publication number
- CN202056164U CN202056164U CN2011200312768U CN201120031276U CN202056164U CN 202056164 U CN202056164 U CN 202056164U CN 2011200312768 U CN2011200312768 U CN 2011200312768U CN 201120031276 U CN201120031276 U CN 201120031276U CN 202056164 U CN202056164 U CN 202056164U
- Authority
- CN
- China
- Prior art keywords
- bolt
- hand inspection
- sealing cap
- hand
- bolt body
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- 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 invention discloses a manual inspection bolt, comprising a manual inspection bolt body (1), an anti-corrosion seal ring (2), a controllable pad (3), an inspected bolt (4) and a seal cap (5). The controllable pad (3) penetrates through the inspected bolt (4). The inspected bolt (4) and the manual inspection bolt body (1) are connected through threads. The controllable pad (3) is pressed at the nut bottom of the inspected bolt (4) and the top of the manual inspection bolt body (1). The seal cap (5) is covered on the top of the manual inspection bolt body (1). Inner fine teeth are matched with the controllable pad (3). The controllable pad (3) and the inspected bolt (4) are protected, by the anti-corrosion seal ring (2), from being corroded by the external environment.
Description
Technical field
The utility model relates to the connecting bolt that a kind of available hand detects degree of tightness, and particularly a kind of diameter is greater than the hand inspection bolt of 20mm, is applicable to the bolt that the connection of the key position of various heavy equipments, equipment is used.
Background technique
In current industry equipment, it all is to adopt bolt to connect that the component of a lot of jumboes connect, with for convenience detach and maintenance.At present the locking method of large diameter bolt is again mainly based on two kinds of pulling method and calibrated wrench methods.Because calibrated wrench method lock bolt nut is easy to use, versatility is good, so be widely used at present.As everyone knows, whether a bolt reaches the locking requirement of technological design, sees mainly whether the axial pre tightening force of bolt reaches requirement.By the bolt of calibrated wrench method locking, because the variation of frictional force, torque coefficient is the value of a dynamic change, so be difficult to guarantee that the pretightening force with a collection of bolt is identical.By the pulling method lock bolt,, cause the partial loss of axial force owing to the springback capacity of bolt for a moment.So whether a bolt originally is locked to the axial force that it is set, and cannot guarantee.
Because the incorrect and same flange bolt coupling mechanism force of bolt axial force locking is inhomogeneous, can cause the flange leakage of petroleum and petrochemical industry, the collapsing of slingcart; the collapsing and shut down of wind power generating set; the steel rolling reject rate of Iron And Steel Plant, even the leakage of nuclear power station, or the like.
The locking problem of large diameter bolt has become the bottleneck that China's new energy, heavy equipment already develop, to have a strong impact on our heavy equipment industry product ability to the higher level development.
The model utility content
For overcoming the deficiency of above-mentioned prior art, the technical problems to be solved in the utility model provides a kind of hand inspection bolt device.
This new technique scheme is as follows:
A kind of hand inspection bolt comprises hand inspection bolt body 1, controlled pad 3, detects bolt 4, sealing cap 5:
Wherein, bolt body 1 nut end is with 4 sockets of detection bolt, and controlled pad 3 is arranged at bottom the nut that detects bolt 4 and between the top of bolt body 1, sealing cap 5 buckle closures are at the top of hand inspection bolt body 1, and are inner with controlled pad 3 connections.
Further, described bolt body 1 has recessed or convex portion protruding accordingly or concave portion tabling formation sockets with described detection bolt 4.
Further, controlled pad 3 is the circular flat gasket of band external tooth.
Controlled pad 3 is through and detects on the bolt 4, detects bolt 4 and examines bolt body 1 by being threaded with hand; Controlled pad 3 is crushed on the nut bottom of detection bolt 4 and the top of hand inspection bolt body 1; Sealing cap 5 buckle closures are at the top of hand inspection bolt body 1, and inner serration cooperates with controlled pad 3, protecting controlled pad 3, detecting bolt 4 by corrosion protection seal ring 2, avoid the corrosion of external environment condition.
When using this device, the hand inspection bolt with the utility model product substitutes traditional common standard bolt earlier, uses present pulling method or calibrated wrench method locking method lock bolt then.In the process that bolt is locked again, the operator can rotate the internal serration sealing cap of hand inspection bolt by hand, when bolt does not reach the axial force of technique initialization, the internal serration sealing cap can be rotated easily, when bolt reaches the axial force of technique initialization, just can not rotate the internal serration sealing cap with hand, show that also bolt has reached the axial force of technique initialization simultaneously.By using hand inspection bolt of the present utility model, can make all bolts of the same type reach same axial pre tightening force, thereby guarantee the installation quality of whole flange or equipment.
Description of drawings
Fig. 1 is the generalized section of the utility model hand inspection bolt;
Fig. 2 is the decomposing schematic representation of the utility model hand inspection bolt;
Label declaration in the accompanying drawing:
1. hand is examined bolt body
2. corrosion protection seal ring
3. controlled pad
4. detect bolt
5. sealing cap
Embodiment
Below in conjunction with accompanying drawing and enforcement embodiment of the present utility model is further described in detail, but should limit protection domain of the present utility model with this.
See also Fig. 1 and Fig. 2.Fig. 1 is the generalized section of the utility model hand inspection bolt; Fig. 2 is the decomposing schematic representation of the utility model hand inspection bolt.The utility model hand inspection bolt comprises: hand inspection bolt body 1, corrosion protection seal ring 2, controlled pad 3, detection bolt 4 and sealing cap 5.
Leave respective voids according to default axial pre tightening force at controlled pad 3 and 1 of bolt body of hand inspection under the utility model hand inspection bolt normality, the sealing cap 5 that connects with controlled pad 3 serrations can arbitrarily be rotated.
The using process of the utility model bolt is as follows:
Use traditional torque wrench fastening nut or use traditional bolt tensioning jack tensile bolt, in this process, the utility model hand inspection bolt body 1 is elongated, produces elastic strain in elastic range; Examining bolt body 1 by screw thread conveniently with hand inspection bolt body 1 close-connected detection bolt 4 moves in the same way; Like this, in moving process, spacing reduces gradually between the nut top of the nut bottom of detection bolt 4 and hand inspection bolt body 1, and is final when reaching the bolt axial force of setting, controlled pad 3 is compressed, thereby controlled pad 3 can not freely be rotated because of the frictional force that this pressure produced; Sealing cap 5 and controlled pad 3 cooperate by serration, being subjected to axial force equally stretches, make sealing cap 5 when relatively moving, produce frictional force with hand inspection bolt body 1 nut top contact segment, thereby sealing cap 5 can't freely rotate, promptly, can whether reach axial pre tightening force to detect bolt by hand rotary seal block 5---when sealing cap 5 can not can freely rotate with hand, bolt just reached the axial pre tightening force of setting.
Sealing cap 5 also is lined with a corrosion protection seal ring with hand inspection bolt body 1 nut top, and the corrosion of avoiding external environment condition is to add stay bolt working life.
Nut bottom that the shape that controlled pad 3 on this hand inspection bolt can be changed into other also can reach same detected bolt 4 and the effect of stepping up with the nut top of hand inspection bolt body 1, this shape can adopt step type garden pad or the flat garden of trapezoidal external tooth pad or the like also can play equal effect.
This kind bolt is particularly suitable for diameter greater than the hand of 20mm inspection bolt, and the bolt that uses of the connection of the key position of various heavy equipments, equipment.
The above is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model.Have in the technical field under any and know the knowledgeable usually, in not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations, therefore protection domain of the present utility model is as the criterion when looking claims institute confining spectrum.
Claims (6)
1. a hand inspection bolt is characterized in that, comprises hand inspection bolt body (1), controlled pad (3), detects bolt (4), sealing cap (5):
Wherein, bolt body (1) nut end is with detecting bolt (4) socket, controlled pad (3) is arranged between the top of the nut bottom of detecting bolt (4) and bolt body (1), and sealing cap (5) buckle closure is examined the top of bolt body (1) at hand, and inside connects with controlled pad (3).
2. hand inspection bolt according to claim 1 is characterized in that, described sealing cap (5) is with also being provided with a corrosion protection seal ring between hand inspection bolt body (1) the nut top.
3. hand inspection bolt according to claim 1 is characterized in that, described bolt body (1) has recessed or convex portion protruding accordingly or concave portion tabling formation socket with described detection bolt (4).
4. hand inspection bolt according to claim 1 and 2 is characterized in that described bolt body (1) passes through the screw thread socket with described detection bolt (4).
5. hand inspection bolt according to claim 1 is characterized in that described sealing cap (5) is connected with the serration interlock with controlled pad (3).
6. hand inspection bolt according to claim 1 is characterized in that controlled pad (3) is the circular flat gasket of band external tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200312768U CN202056164U (en) | 2011-01-28 | 2011-01-28 | Manual inspection bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200312768U CN202056164U (en) | 2011-01-28 | 2011-01-28 | Manual inspection bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056164U true CN202056164U (en) | 2011-11-30 |
Family
ID=45016135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200312768U Expired - Fee Related CN202056164U (en) | 2011-01-28 | 2011-01-28 | Manual inspection bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056164U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086895A (en) * | 2011-01-28 | 2011-06-08 | 李圣用 | Manual inspection bolt |
| CN103213593A (en) * | 2012-01-18 | 2013-07-24 | 南车青岛四方机车车辆股份有限公司 | Inter-city train air conditioning unit installing structure |
| CN108163160A (en) * | 2017-12-21 | 2018-06-15 | 沪东中华造船(集团)有限公司 | A kind of spare water inlet detecting device in watertight cabin and its detection method |
-
2011
- 2011-01-28 CN CN2011200312768U patent/CN202056164U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086895A (en) * | 2011-01-28 | 2011-06-08 | 李圣用 | Manual inspection bolt |
| CN103213593A (en) * | 2012-01-18 | 2013-07-24 | 南车青岛四方机车车辆股份有限公司 | Inter-city train air conditioning unit installing structure |
| CN103213593B (en) * | 2012-01-18 | 2015-11-25 | 南车青岛四方机车车辆股份有限公司 | Inter-city train air-conditioner set mounting structure |
| CN108163160A (en) * | 2017-12-21 | 2018-06-15 | 沪东中华造船(集团)有限公司 | A kind of spare water inlet detecting device in watertight cabin and its detection method |
| CN108163160B (en) * | 2017-12-21 | 2019-10-11 | 沪东中华造船(集团)有限公司 | A kind of spare water inlet detecting device in watertight cabin and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20140128 |