CN113251053B - Bolt fastener suitable for severe cold weather - Google Patents
Bolt fastener suitable for severe cold weather Download PDFInfo
- Publication number
- CN113251053B CN113251053B CN202110370745.7A CN202110370745A CN113251053B CN 113251053 B CN113251053 B CN 113251053B CN 202110370745 A CN202110370745 A CN 202110370745A CN 113251053 B CN113251053 B CN 113251053B
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- Prior art keywords
- air supply
- rod
- bolt
- heating
- bolt fastener
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- 238000010438 heat treatment Methods 0.000 claims abstract description 59
- 238000007664 blowing Methods 0.000 claims 1
- 238000010257 thawing Methods 0.000 abstract description 10
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/002—Measures against loss of bolts, nuts or pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a bolt fastener suitable for severe cold weather, which comprises a fastening assembly and a thawing assembly, wherein the fastening assembly comprises a bolt rod, a nut and a screw cover, the bolt rod comprises a screw head and a rod body, a first heating cavity is arranged at one side of the interior of the screw head, which is close to the rod body, a second heating cavity and a fixing groove are arranged along the central line of the interior of the rod body, third heating cavities penetrating through two ends of the nut are arranged on two side walls of the nut, the thawing assembly comprises a first pipe body, a second pipe body and two third pipe bodies, the first pipe body comprises a first connecting part and a first air supply part, the second pipe body comprises a second connecting part and a second air supply part, the first connecting part and the second connecting part are connected together through threads, and two sides of the first air supply part are respectively communicated with the two third pipe bodies through threaded hoses. The bolt unfreezing device can unfreeze frozen bolts, and is short in unfreezing time, high in unfreezing efficiency and wide in application range.
Description
Technical Field
The invention belongs to the technical field of bolts, and particularly relates to a bolt fastener suitable for severe cold weather.
Background
The fastener is a mechanical part which is used for fastening and connecting and has wide application, has wide application industries including electronics, machinery, chemical engineering, metallurgy and the like, can be seen on various machines, buildings, equipment and the like, and is a mechanical basic part which has the widest application. In extremely cold regions, rain and snow weather often occurs, the bolt and equipment are easily frozen together by rain and snow around the bolt and are not easy to detach, and if the bolt is detached strongly, the bolt can be twisted off, so that great difficulty is caused to the maintenance work of the equipment.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the bolt fastener which can be used for unfreezing frozen bolts, has short unfreezing time, high unfreezing efficiency and wide application range and is suitable for severe cold weather.
In order to achieve the above object, the present invention adopts the following technical solutions:
the bolt fastener suitable for severe cold weather comprises a fastening component and a thawing component, wherein the fastening component comprises a bolt rod, a nut and a screw cover, the bolt rod comprises a screw head and a rod body, one side of the inside of the screw head, which is close to the rod body, is provided with a first heating cavity, the inside of the rod body is provided with a second heating cavity and a fixing groove along the central line of the rod body, two side walls of the nut are respectively provided with a third heating cavity which penetrates through two ends of the nut, the thawing component comprises a first pipe body, a second pipe body and two third pipe bodies, the first pipe body comprises a first connecting part and a first air supply part, the second pipe body comprises a second connecting part and a second air supply part, and the first connecting part and the second connecting part are connected together through threads, the two sides of the first air supply part are respectively communicated with the two third pipe bodies through the threaded hoses, and the right ends of the third pipe bodies are connected to the outer wall of the first air supply part in a sliding mode.
Preferably, all be provided with the guide slot on the both sides outer wall of aforementioned first air supply portion, the third body is close to and is fixed with the telescopic link perpendicularly on the lateral wall of first air supply portion, the outer end of telescopic link be connected with guide slot assorted guide block, guide block sliding connection is in the guide slot to realize the round trip movement of third body, the back-and-forth movement of third body can be applicable to the shank of bolt of various length, in order to guarantee that the third body can insert to the third heating chamber, expand the application scope of component of freezing.
Preferably again, the inside of aforementioned screw cap is provided with perpendicularly with fixed slot assorted cylindrical fixed block, screw cap threaded connection in the outer end of the body of rod, the fixed block inlays in the fixed slot, can avoid having debris to get into the second heating chamber in, can also avoid sleet to get into in fixed slot and the second heating chamber and freeze.
More preferably, the outer diameter of the first connecting portion is greater than the outer diameter of the screw cap, the screw cap can be heated and thawed by covering the screw cap with the first connecting portion, the outer diameter of the first air supply portion is less than the outer diameter of the first connecting portion, the influence on the back and forth movement of the third pipe body can be avoided, the outer diameter of the second air supply portion is less than the outer diameter of the second heating cavity, and the outer diameter of the third pipe body is less than the outer diameter of the third heating cavity.
Further preferably, a plurality of air leakage holes are uniformly distributed on the side wall of the second air supply part.
Specifically, two ends of the second heating cavity are respectively communicated with the first heating cavity and the fixing groove.
Preferably, both sides of the second heating cavity in the rod body are provided with fourth heating cavities communicated with the second heating cavity, so that the joints between the rod body and the nut and between the rod body and the equipment can be further heated and unfrozen.
Preferably, the outer end of the first air supply part is connected with a hot air blower in a threaded manner, so that hot air can be supplied conveniently.
The invention has the advantages that: the bolt fastener is simple in structure and convenient to use, the second air supply part in the unfreezing assembly is inserted into the second heating cavity, the joints between the screw head and the equipment, between the rod body and the nut and between the rod body and the equipment can be heated and unfrozen through hot air, the third pipe body is inserted into the third heating cavity in the nut, the nut and the nut can be heated and unfrozen, and the unfreezing time can be shortened and the unfreezing efficiency can be improved through simultaneous heating of multiple parts, so that the bolt can be quickly unfrozen and disassembled; the front and back movement of the third pipe body can be suitable for bolt rods with different lengths so as to ensure that the third pipe body can be inserted into the third heating cavity, the up and down movement of the third pipe body can be realized through the telescopic rod, the nut freezing device is suitable for nuts with different diameters, and the application range of the freezing component is further expanded; the screw cap is in threaded connection with the outer end of the rod body, so that the fixing groove can be shielded, sundries are prevented from entering the second heating cavity, and rain and snow can be prevented from entering the fixing groove and the second heating cavity and being frozen; the first connecting part is used for covering the screw cap to heat and unfreeze the screw cap, and the screw cap can be taken down and then the bolt is unfrozen.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a bolt shank in the present invention;
FIG. 3 is a perspective view of the nut of the present invention;
FIG. 4 is a cross-sectional view of the screw cap of the present invention;
FIG. 5 is a cross-sectional view of the defrosting assembly of the present invention;
FIG. 6 is a cross-sectional view of the defrosting assembly for defrosting the screw cap according to the present invention;
fig. 7 is a perspective view of a second tube of the present invention.
The meaning of the reference symbols in the figures: 1. nut, 1.1, third heating chamber, 2, spiral shell lid, 2.1, fixed block, 3, spiral shell head, 3.1, first heating chamber, 4, the body of rod, 4.1, second heating chamber, 4.2, the fixed slot, 4.3, fourth heating chamber, 5, first connecting portion, 6, first air supply portion, 7, second connecting portion, 8, second air supply portion, 8.1, the hole that leaks out, 9, the threaded hose, 10, third body, 11, the telescopic link, 12, the guide block.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
Referring to fig. 1, the bolt fastener suitable for severe weather of the invention comprises a fastening assembly and a thawing assembly, wherein the fastening assembly comprises a bolt rod, a nut 1 and a screw cap 2, and the bolt rod comprises a screw head 3 and a rod body 4.
Referring to fig. 2 and 3, a first heating cavity 3.1 is arranged on one side of the interior of the screw head 3 close to the rod body 4, a second heating cavity 4.1 and a fixing groove 4.2 are arranged on the interior of the rod body 4 along the central line of the rod body, third heating cavities 1.1 penetrating through two ends of the nut 1 are arranged on two side walls of the nut 1, and two ends of the second heating cavity 4.1 are respectively communicated with the first heating cavity 3.1 and the fixing groove 4.2. The both sides of second heating chamber 4.1 all are provided with the fourth heating chamber 4.3 that is linked together with second heating chamber 4.1 in the body of rod 4, can more deepen heat the junction unfreeze between the body of rod 4 and nut 1 and between the body of rod 4 and the equipment.
Referring to fig. 4, the inside of the screw cap 2 is vertically provided with a cylindrical fixing block 2.1 matched with the fixing groove 4.2, the screw cap 2 is in threaded connection with the outer end of the rod body 4, the fixing block 2.1 is embedded in the fixing groove 4.2, impurities can be prevented from entering the second heating chamber 4.1, and rain and snow can be prevented from entering the fixing groove 4.2 and the second heating chamber 4.1 and freezing.
Referring to fig. 5, 6 and 7, the subassembly that unfreezes includes first body, second body and two third bodies, first body includes first connecting portion 5 and first air supply portion 6, the second body includes second connecting portion 7 and second air supply portion 8, first connecting portion 5 and second connecting portion 7 are in the same place through threaded connection, in order to link together first body and second body, the outer end threaded connection air heater of first air supply portion 6, be convenient for provide hot air, be provided with a plurality of evenly distributed's hourglass wind hole 8.1 on the lateral wall of second air supply portion 8.
The two sides of the first air supply part 6 are respectively communicated with the two third pipe bodies 10 through the threaded hoses 9, and the threaded hoses 9 are telescopic and bendable, so that the positions of the third pipe bodies 10 can be conveniently adjusted. The right-hand member sliding connection of third body 10 is on the outer wall of first air supply portion 6, all be provided with the guide slot on the both sides outer wall of first air supply portion 6, third body 10 is close to vertical fixation on the lateral wall of first air supply portion 6 and has telescopic link 11, the outer end of telescopic link 11 is connected with guide block 12 with the guide slot assorted, guide block 12 sliding connection is in the guide slot, in order to realize the round trip movement of third body 10, the back-and-forth movement of third body 10 is applicable in the shank of bolt of various length, in order to guarantee that third body 10 can insert to third heating chamber 1.1, the application scope of subassembly is frozen in the expansion.
The external diameter of first connecting portion 5 is greater than the external diameter of spiral shell lid 2, can heat the spiral shell lid 2 through covering spiral shell lid 2 with first connecting portion 5 and unfreeze, and the external diameter of first air supply portion 6 is less than the external diameter of first connecting portion 5, can avoid influencing the round trip movement of third body 10, and the external diameter of second air supply portion 8 is less than the external diameter of second heating chamber 4.1, and the external diameter of third body 10 is less than the external diameter of third heating chamber 1.1.
For better illustration of the present invention, the following is a detailed description of the working process:
when the bolt needs to be unfrozen, firstly, the outer end of the first air supply part 6 is connected with the hot air blower in a threaded manner, the screw cap 2 is covered by the first connecting part 5, the hot air is opened to heat and unfreeze the screw cap 2, and then the screw cap 2 can be taken down; then with first connecting portion 5 and second connecting portion 7 threaded connection together, after first body and second body are good, insert second air supply portion 8 in second heating chamber 4.1, adjust the height and the position of third body 10, make third body 10 insert in the third heating chamber 1.1 in the nut 1, open hot-blast to between spiral shell head 3 and the equipment, between the body of rod 4 and the nut 1, and the junction between the body of rod 4 and the equipment heat the thawing processing, extract the subassembly that unfreezes after unfreezing, can dismantle the bolt.
The bolt fastener is simple in structure and convenient to use, the second air supply part 8 in the unfreezing assembly is inserted into the second heating cavity 4.1, the joints between the screw head 3 and equipment, between the rod body 4 and the nut 1 and between the rod body 4 and the equipment can be heated and unfrozen through hot air, the third pipe body 10 is inserted into the third heating cavity 1.1 in the nut 1, the nut 1 and the equipment and the rod body 4 and the nut 1 can be heated and unfrozen, and the unfreezing time can be shortened and the unfreezing efficiency can be improved due to simultaneous heating of multiple parts, so that the bolt can be quickly unfrozen and disassembled; the back and forth movement of the third pipe body 10 can be suitable for bolt bars with different lengths so as to ensure that the third pipe body 10 can be inserted into the third heating cavity 1.1, and the up and down movement of the third pipe body 10 can be realized through the telescopic rod 11, so that the device is suitable for nuts 1 with different diameters, and the application range of the defrosting assembly is further expanded; the screw cap 2 is in threaded connection with the outer end of the rod body 4, so that the fixing groove 4.2 can be shielded, sundries are prevented from entering the second heating chamber 4.1, and rain and snow can be prevented from entering the fixing groove 4.2 and the second heating chamber 4.1 and freezing; the screw cap 2 can be heated and unfrozen by covering the screw cap 2 with the first connecting part 5, and then the screw cap 2 can be taken down and the bolt can be unfrozen.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (8)
1. Bolt fastener suitable for severe cold weather, characterized by, including fastening components and unfreezing subassembly, fastening components includes shank of bolt, nut (1) and spiral shell lid (2), the shank of bolt includes spiral shell head (3) and body of rod (4), one side that the inside of spiral shell head (3) is close to body of rod (4) is provided with first heating chamber (3.1), the inside of body of rod (4) is provided with second heating chamber (4.1) and fixed slot (4.2) along its central line, all be provided with third heating chamber (1.1) that runs through its both ends on the both sides wall of nut (1), the subassembly that unfreezes includes first body, second body and two third bodies (10), first body includes first connecting portion (5) and first air supply portion (6), the second body includes second connecting portion (7) and second air supply portion (8), first connecting portion (5) and second connecting portion (7) pass through threaded connection together, the first pipe body and the second pipe body are connected together, two sides of the first air supply part (6) are respectively communicated with two third pipe bodies (10) through threaded hoses (9), and the right ends of the third pipe bodies (10) are connected to the outer wall of the first air supply part (6) in a sliding mode;
the second air supply part (8) is correspondingly inserted into the second heating cavity (4.1), and the two third pipe bodies (10) are correspondingly inserted into the two third heating cavities (1.1) of the nut (1) respectively so as to connect the fastening assembly and the unfreezing assembly together.
2. The bolt fastener suitable for severe cold weather according to claim 1, wherein guide grooves are formed in the outer walls of the two sides of the first air supply part (6), an expansion rod (11) is vertically fixed on the side wall, close to the first air supply part (6), of the third pipe body (10), the outer end of the expansion rod (11) is connected with a guide block (12) matched with the guide grooves, and the guide block (12) is slidably connected in the guide grooves so as to realize the back-and-forth movement of the third pipe body (10).
3. The bolt fastener suitable for severe weather according to claim 1, characterized in that a cylindrical fixing block (2.1) matched with the fixing groove (4.2) is vertically arranged inside the screw cap (2), the screw cap (2) is in threaded connection with the outer end of the rod body (4), and the fixing block (2.1) is embedded in the fixing groove (4.2).
4. The bolt fastener suitable for severe weather according to claim 1, wherein the outer diameter of the first connecting portion (5) is larger than that of the screw cap (2), the outer diameter of the first air supply portion (6) is smaller than that of the first connecting portion (5), the outer diameter of the second air supply portion (8) is smaller than that of the second heating cavity (4.1), and the outer diameter of the third pipe body (10) is smaller than that of the third heating cavity (1.1).
5. The bolt fastener suitable for severe weather according to claim 1, wherein the side wall of the second air supply part (8) is provided with a plurality of air leakage holes (8.1) which are uniformly distributed.
6. The bolt fastener suitable for severe weather according to claim 1, wherein both ends of the second heating cavity (4.1) are respectively communicated with the first heating cavity (3.1) and the fixing groove (4.2).
7. The bolt fastener suitable for severe cold weather according to claim 1, characterized in that, the rod body (4) is provided with fourth heating cavities (4.3) communicated with the second heating cavities (4.1) at two sides of the second heating cavities (4.1).
8. The bolt fastener for severe weather according to claim 1, wherein the outer end of the first air blowing part (6) is threadedly connected with a hot air blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370745.7A CN113251053B (en) | 2021-04-07 | 2021-04-07 | Bolt fastener suitable for severe cold weather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370745.7A CN113251053B (en) | 2021-04-07 | 2021-04-07 | Bolt fastener suitable for severe cold weather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113251053A CN113251053A (en) | 2021-08-13 |
| CN113251053B true CN113251053B (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110370745.7A Active CN113251053B (en) | 2021-04-07 | 2021-04-07 | Bolt fastener suitable for severe cold weather |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085541A (en) * | 1980-10-15 | 1982-04-28 | Goetaverken Motor | A bolt for assembling heat exposed constructions |
| US4884934A (en) * | 1986-10-01 | 1989-12-05 | Kabushiki Kaisha Toshiba | Junction bolt with adjustable clamping force |
| CN2806856Y (en) * | 2005-05-25 | 2006-08-16 | 张永杰 | Readily dismantled high-pressure stud and bolt |
| CN103180088A (en) * | 2011-10-26 | 2013-06-26 | Newpol机械工程有限公司 | Gas bolt heating apparatus |
| CN103615450A (en) * | 2013-12-02 | 2014-03-05 | 北京化工大学 | Spacecraft unlocking and separating device |
| CN204327701U (en) * | 2014-10-11 | 2015-05-13 | 广东梅雁吉祥水电股份有限公司 | Hydroelectric power plant's rotor coupling shaft bolt structure |
| CN106286534A (en) * | 2015-05-22 | 2017-01-04 | 凤冈县凤鸣农用机械制造有限公司 | A kind of pretension bolt assembly |
| CN206608427U (en) * | 2017-03-17 | 2017-11-03 | 上海群力紧固件制造有限公司 | A kind of bolt |
| CN207892966U (en) * | 2018-01-23 | 2018-09-21 | 中国葛洲坝集团机械船舶有限公司 | Readily removable articulation fitting-up bolt |
| CN110107581A (en) * | 2019-04-30 | 2019-08-09 | 西京学院 | A kind of anti-loose fastening device and its application method |
| CN211672449U (en) * | 2019-12-23 | 2020-10-16 | 云南中烟再造烟叶有限责任公司 | Capsule type heating non-combustion cigarette bomb |
| CN111963544A (en) * | 2020-07-30 | 2020-11-20 | 江苏永昊高强度螺栓有限公司 | Bolt fastener suitable for severe cold weather and production method of bolt |
-
2021
- 2021-04-07 CN CN202110370745.7A patent/CN113251053B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085541A (en) * | 1980-10-15 | 1982-04-28 | Goetaverken Motor | A bolt for assembling heat exposed constructions |
| US4884934A (en) * | 1986-10-01 | 1989-12-05 | Kabushiki Kaisha Toshiba | Junction bolt with adjustable clamping force |
| CN2806856Y (en) * | 2005-05-25 | 2006-08-16 | 张永杰 | Readily dismantled high-pressure stud and bolt |
| CN103180088A (en) * | 2011-10-26 | 2013-06-26 | Newpol机械工程有限公司 | Gas bolt heating apparatus |
| CN103615450A (en) * | 2013-12-02 | 2014-03-05 | 北京化工大学 | Spacecraft unlocking and separating device |
| CN204327701U (en) * | 2014-10-11 | 2015-05-13 | 广东梅雁吉祥水电股份有限公司 | Hydroelectric power plant's rotor coupling shaft bolt structure |
| CN106286534A (en) * | 2015-05-22 | 2017-01-04 | 凤冈县凤鸣农用机械制造有限公司 | A kind of pretension bolt assembly |
| CN206608427U (en) * | 2017-03-17 | 2017-11-03 | 上海群力紧固件制造有限公司 | A kind of bolt |
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|---|---|
| CN113251053A (en) | 2021-08-13 |
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