CN103939445B - Multistage self-feed gap makes up bolt - Google Patents
Multistage self-feed gap makes up bolt Download PDFInfo
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- CN103939445B CN103939445B CN201410170332.4A CN201410170332A CN103939445B CN 103939445 B CN103939445 B CN 103939445B CN 201410170332 A CN201410170332 A CN 201410170332A CN 103939445 B CN103939445 B CN 103939445B
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- screw rod
- nut
- thermal insulation
- gap
- make
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Abstract
The invention discloses a kind of multistage self-feed gap and make up bolt, comprise interconnective nut and screw rod, on screw rod, be arranged with thermal insulation barriers, nut, screw rod and thermal insulation barriers surround an annular chamber jointly, in annular chamber, be compressed with the driving spring that is set in screw rod, driving spring one end and nut offset, the other end supports and is provided with the part that makes up being set on screw rod, make up part and thermal insulation barriers offsets, thermal insulation barriers lost efficacy while disappearance, and driving spring stretches to push to make up part and make up part and shrinks and make up the gap between nut and fastening surface. That this bolt has advantages of is simple in structure, easy for installation, can realize gap makes up automatically.
Description
Technical field
The present invention relates generally to securing member interconnection technique, relates in particular to a kind of multistage self-feed gap and makes up bolt.
Background technology
In order to make after bolt tightening its locking face stressed evenly, the reasons such as lifting surface area increase, the installation personnel bolt underlay of being everlasting is established metal or nylon washer. Nylon washer, compared with metal washer, has excellent insulation, anti-corrosion, heat insulation and non magnetic energy, and lightweight, is widely used in the various fields such as semiconductor, automobile, aerospace industry and interior decoration.
But while facing larger variations in temperature (as being subject to influence of fire) due to nylon washer, be prone to aging phenomenon compared with miscellaneous part, when after nylon washer ageing failure, bolt and fastening surface will produce gap, bolt can become flexible, make whole Joint failure if do not eliminated gap likely because of becoming flexible of bolt, thereby lead to serious accident.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, easy for installation, can realize the multistage self-feed gap that gap makes up automatically and make up bolt.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of multistage self-feed gap makes up bolt, comprise interconnective nut and screw rod, on described screw rod, be arranged with thermal insulation barriers, described nut, screw rod and thermal insulation barriers surround an annular chamber jointly, in described annular chamber, be compressed with the driving spring that is set in screw rod, described driving spring one end and nut offset, the other end supports and is provided with the part that makes up being set on screw rod, describedly make up part and thermal insulation barriers offsets, described thermal insulation barriers lost efficacy while disappearance, described driving spring stretch make up described in pushing part and described in make up part and shrink and make up the gap between nut and fastening surface.
Further improvement as technique scheme:
Described screw rod is in being provided with at least two-stage feeding step with the suit place that makes up part, described thermal insulation barriers lost efficacy while disappearance, described driving spring stretch make up described in pushing part and described in make up part and shrink step by step and make up the gap between nut and fastening surface along feeding steps at different levels.
The described part that makes up is snap ring, described snap ring lock ring is in screw rod periphery, described thermal insulation barriers lost efficacy while disappearance, and described driving spring stretches and pushes described snap ring and described snap ring and shrink step by step and make up the gap between nut and fastening surface along feeding steps at different levels.
Described feeding step is provided with the first inclined-plane, described snap ring is provided with the second inclined-plane for coordinate slippage with the first inclined-plane in lock ring side, described thermal insulation barriers lost efficacy while disappearance, described driving spring stretch the second inclined-plane of pushing described snap ring and described snap ring along the first inclined-plane of feeding steps at different levels step by step slippage shrink and make up the gap between nut and fastening surface.
On described snap ring, offer the opening of being convenient to snap ring contraction distending.
The described part that makes up comprises snap ring and two semicircle anchor ears, two semicircle anchor ears pass through snap ring lock ring in screw rod periphery after being placed on screw rod, described driving spring one end and nut offset, the other end and semicircle anchor ear offset, described semicircle anchor ear and thermal insulation barriers offset, described thermal insulation barriers lost efficacy while disappearance, and described driving spring stretching, extension pushes two semicircle anchor ears simultaneously and two semicircle anchor ears move along feeding steps at different levels the gap making up between nut and fastening surface step by step.
Described feeding step is provided with the first inclined-plane, the inner side of described semicircle anchor ear is provided with the inclined-plane A for coordinate slippage with the first inclined-plane, described thermal insulation barriers lost efficacy while disappearance, and described driving spring stretches the inclined-plane A that simultaneously pushes two semicircle anchor ears and two semicircle anchor ears along the mobile gap making up between nut and fastening surface step by step, the first inclined-plane of feeding steps at different levels.
Described thermal insulation barriers is connected with screw flight.
Be formed in one structure or described nut of described nut and screw rod is connected with screw flight.
Compared with prior art, the invention has the advantages that:
Multistage self-feed of the present invention gap makes up bolt, this bolt arrangement comprises interconnective nut and screw rod, on screw rod, be arranged with thermal insulation barriers, thermal insulation barriers can play the effect of bridge insulation thermal resistance, it is simple in structure, easy for installation, nut, screw rod and thermal insulation barriers surround an annular chamber jointly, in annular chamber, be compressed with the driving spring that is set in screw rod, driving spring one end and nut offset, the other end supports and is provided with the part that makes up being set on screw rod, make up part and thermal insulation barriers offsets, in the time of installment state, this driving spring is compressed to be tightened up in annular chamber, form pre-release force, in the time that thermal insulation barriers lost efficacy disappearance, between this bolt arrangement and fastening surface, can produce gap, now, driving spring can stretch to push and make up part, make to make up part and move contraction to fastening surface direction, thereby make up the gap between nut and fastening surface, guarantee that this bolt arrangement can not become flexible, realize secondary fastening effect, the stability and the security that connect are greatly improved, in this structure, making up part can shrink and make up the gap between nut and fastening surface along feeding steps at different levels are mobile step by step, make up after the every mobile one-level of part, the feeding step of this grade can limit and make up part and oppositely move, there is anti-back function, in the process slowly disappearing at thermal insulation barriers, realize and making up step by step, guarantee that this bolt arrangement can not become flexible, its design is very ingenious.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram before the embodiment of the present invention 1 thermal insulation barriers disappears.
Fig. 2 is the sectional structure schematic diagram that the embodiment of the present invention 1 thermal insulation barriers fades away.
Fig. 3 is the sectional structure schematic diagram after the embodiment of the present invention 1 thermal insulation barriers disappears.
Fig. 4 is the perspective view before the embodiment of the present invention 1 thermal insulation barriers disappears.
Fig. 5 is the perspective view of nut in the embodiment of the present invention 1.
Fig. 6 is the perspective view of screw rod in the embodiment of the present invention 1.
Fig. 7 is the perspective view of the embodiment of the present invention 1 Elastic snap ring.
Fig. 8 is the perspective view of driving spring in the embodiment of the present invention 1.
Fig. 9 is the perspective view of thermal insulation barriers in the embodiment of the present invention 1.
Figure 10 is the sectional structure schematic diagram before the embodiment of the present invention 2 thermal insulation barriers disappear.
Figure 11 is the sectional structure schematic diagram after the embodiment of the present invention 2 thermal insulation barriers disappear.
Figure 12 is the perspective view before the embodiment of the present invention 2 thermal insulation barriers disappear.
Figure 13 is the structural representation of nut in the embodiment of the present invention 2.
Figure 14 is the structural representation of screw rod in the embodiment of the present invention 2.
Figure 15 is the structural representation of semicircle anchor ear in the embodiment of the present invention 2.
In figure, each label represents:
1, nut; 2, screw rod; 21, feeding step; 211, the first inclined-plane; 22, anti-back boss; 3, thermal insulation barriers; 4, annular chamber; 5, driving spring; 6, snap ring; 61, the second inclined-plane; 62, opening; 7, semicircle anchor ear; 71, inclined-plane A; 72, hoop groove.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
Embodiment 1:
Fig. 1 to Fig. 9 shows the multistage self-feed of the present invention gap and makes up the first embodiment of bolt, this bolt arrangement comprises interconnective nut 1 and screw rod 2, on screw rod 2, be arranged with thermal insulation barriers 3, thermal insulation barriers 3 can play the effect of bridge insulation thermal resistance, it is simple in structure, easy for installation, nut 1, screw rod 2 and thermal insulation barriers 3 surround an annular chamber 4 jointly, in annular chamber 4, be compressed with the driving spring 5 that is set in screw rod 2, driving spring 5 one end and nut 1 offset, the other end supports and is provided with the part that makes up being set on screw rod 2, make up part and thermal insulation barriers 3 offsets, in the time of installment state, this driving spring 5 is compressed to be tightened up in annular chamber 4, form pre-release force, in the time that thermal insulation barriers 3 lost efficacy disappearance, between this bolt arrangement and fastening surface, can produce gap, now, driving spring 5 can stretch to push and make up part, make to make up part and move contraction to fastening surface direction, thereby make up the gap between nut 1 and fastening surface, guarantee that this bolt arrangement can not become flexible, realize secondary fastening effect, the stability and the security that connect are greatly improved.
In embodiment, screw rod 2 is in being provided with at least two-stage feeding step 21 with the suit place that makes up part, thermal insulation barriers 3 lost efficacy while disappearance, driving spring 5 stretches to push and makes up part, and making up part shrinks step by step and makes up the gap between nut 1 and fastening surface along feeding steps 21 at different levels, in this structure, making up part can shrink and make up the gap between nut 1 and fastening surface along feeding steps 21 at different levels are mobile step by step, make up after the every mobile one-level of part, the feeding step 21 meeting restrictions of this grade make up part and oppositely move, there is anti-back function, in the process slowly disappearing at thermal insulation barriers 3, realize and making up step by step, guarantee that this bolt arrangement can not become flexible, it is simple in structure, design ingenious.
In the present embodiment, making up part is snap ring 6, snap ring 6 lock rings are in screw rod 2 peripheries, thermal insulation barriers 3 lost efficacy while disappearance, driving spring 5 stretches and pushes snap ring 6, and snap ring 6 shrinks step by step and makes up the gap between nut 1 and fastening surface along feeding steps 21 at different levels, in this structure, making up part is snap ring 6, in the time of installment state, snap ring 6 is in distending state, form pre-convergent force, in the time that driving spring 5 stretching, extensions push snap ring 6, this snap ring 6 can shrink step by step and make up the gap between nut 1 and fastening surface along feeding steps 21 at different levels, it is simple for structure, ensure the fastening effect of secondary.
In the present embodiment, feeding step 21 is provided with the first inclined-plane 211, snap ring 6 is provided with the second inclined-plane 61 for coordinate slippage with the first inclined-plane 211 in lock ring side, thermal insulation barriers 3 lost efficacy while disappearance, driving spring 5 stretches and pushes snap ring 6, and the second inclined-plane 61 of snap ring 6 along the first inclined-plane 211 of feeding steps 21 at different levels step by step slippage shrink and make up the gap between nut 1 and fastening surface, the slippage that coordinates by the second inclined-plane 61 with the first inclined-plane 211, be convenient to the feeding step by step of snap ring 6, stability and agility that self-feed makes up are improved, simultaneously, inclined-plane coordinates also can prevent that snap ring 6 from oppositely moving, further improve anti-back effect.
In the present embodiment, the part of screw rod 2 in stretching to annular chamber 4 is provided with anti-back boss 22, and this anti-back boss 22 offsets with snap ring 6, prevents that setback appears in snap ring 6 in the time of installment state, and it is simple and reliable for structure.
In the present embodiment, on snap ring 6, offer the opening 62 of being convenient to snap ring 6 and shrinking distending, be convenient to snap ring 6 distendings forms pre-convergent force to this opening 62 on the one hand, is convenient to again on the other hand snap ring 6 and moves forward into process contraction, has further ensured that multistage self-feed gap makes up function.
In the present embodiment, thermal insulation barriers 3 is threaded with screw rod 2, makes thermal insulation barriers 3 and screw rod 2 in the time of installment state, form Unified Global, has greatly improved the bonding strength of thermal insulation barriers 3 with screw rod 2.
In the present embodiment, nut 1 is threaded with screw rod 2, and nut 1 is split-type structural with screw rod 2, is convenient to the loading and unloading of whole bolt arrangement.
In other embodiments, nut 1 also can be integrated formed structure with screw rod 2, to improve the intensity of whole bolt arrangement.
Embodiment 2:
Figure 10 to Figure 15 shows the multistage self-feed of the present invention gap and makes up the second embodiment of bolt, this bolt arrangement is substantially the same manner as Example 1, difference is only: make up part and comprise snap ring 6 and two semicircle anchor ears 7, two semicircle anchor ears 7 pass through snap ring 6 lock rings in screw rod 2 peripheries after being placed on screw rod 2, driving spring 5 one end and nut 1 offset, the other end and semicircle anchor ear 7 offset, semicircle anchor ear 7 offsets with thermal insulation barriers 3, thermal insulation barriers 3 lost efficacy while disappearance, driving spring 5 stretches and pushes two semicircle anchor ears 7 simultaneously, and two semicircle anchor ears 7 are along the feeding steps 21 at different levels mobile gap making up between nut 1 and fastening surface step by step, in this structure, making up part is split-type structural, be set in behind screw rod 2 peripheries by 7 docking of two semicircle anchor ears, with snap ring 6 lock rings two semicircle anchor ear 7 peripheries, be convenient to make up on the one hand the installation of part, on the other hand, can ensure again to make up part shrinks and locomotive function, it is simple in structure, design ingenious.
In the present embodiment, feeding step 21 is provided with the first inclined-plane 211, the inner side of semicircle anchor ear 7 is provided with the inclined-plane A71 for coordinate slippage with the first inclined-plane 211, thermal insulation barriers 3 lost efficacy while disappearance, driving spring 5 stretches and pushes two semicircle anchor ears 7 simultaneously, and the inclined-plane A71 of two semicircle anchor ears 7 is along the mobile gap making up between nut 1 and fastening surface step by step, the first inclined-plane 211 of feeding steps 21 at different levels, the slippage that coordinates by inclined-plane A71 with the first inclined-plane 211, be convenient to the feeding step by step of two semicircle anchor ears 7, stability and agility that self-feed makes up are improved, simultaneously, inclined-plane coordinates also can prevent that two semicircle anchor ears 7 from oppositely moving, further improve anti-back effect.
In the present embodiment, semicircle anchor ear 7 peripheries offer the hoop groove 72 for coordinating with snap ring 6, and this hoop groove 72 can position snap ring 6, can prevent that the phenomenon that hoop is inclined to one side from appearring in snap ring 6, improve the lock ring intensity of snap ring 6, ensured that two semicircle anchor ears 7 can not drop.
Although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention. Any those of ordinary skill in the art, in the situation that not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations. Therefore, every content that does not depart from technical solution of the present invention,, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (9)
1. a multistage self-feed gap makes up bolt, comprise interconnective nut (1) and screw rod (2), on described screw rod (2), be arranged with thermal insulation barriers (3), it is characterized in that: described nut (1), screw rod (2) and thermal insulation barriers (3) surround an annular chamber (4) jointly, in described annular chamber (4), be compressed with the driving spring (5) that is set in screw rod (2), described driving spring (5) one end and nut (1) offset, the other end supports and is provided with the part that makes up being set on screw rod (2), describedly make up part and thermal insulation barriers (3) offsets, described thermal insulation barriers (3) lost efficacy while disappearance, described in pushing, described driving spring (5) stretching, extension makes up part, and described in make up part and shrink and make up the gap between nut (1) and fastening surface, described screw rod (2) is in being provided with at least two-stage feeding step (21) with the suit place that makes up part, described thermal insulation barriers (3) lost efficacy while disappearance, described in pushing, described driving spring (5) stretching, extension makes up part, and described in make up part and shrink step by step and make up the gap between nut (1) and fastening surface along feeding steps at different levels (21).
2. multistage self-feed according to claim 1 gap makes up bolt, it is characterized in that: described in to make up part be snap ring (6), described snap ring (6) lock ring is in screw rod (2) periphery, described thermal insulation barriers (3) lost efficacy while disappearance, and described driving spring (5) stretches and pushes described snap ring (6) and described snap ring (6) and shrink step by step and make up the gap between nut (1) and fastening surface along feeding steps at different levels (21).
3. multistage self-feed according to claim 2 gap makes up bolt, it is characterized in that: described feeding step (21) is provided with the first inclined-plane (211), described snap ring (6) is provided with the second inclined-plane (61) for coordinate slippage with the first inclined-plane (211) in lock ring side, described thermal insulation barriers (3) lost efficacy while disappearance, described driving spring (5) stretches and pushes described snap ring (6), and second inclined-plane (61) of described snap ring (6) along first inclined-plane (211) of feeding steps at different levels (21) step by step slippage shrink and make up the gap between nut (1) and fastening surface.
4. multistage self-feed according to claim 3 gap makes up bolt, it is characterized in that: on described snap ring (6), offer the opening (62) of being convenient to snap ring (6) contraction distending.
5. multistage self-feed according to claim 1 gap makes up bolt, it is characterized in that: described in make up part and comprise snap ring (6) and two semicircle anchor ears (7), two semicircle anchor ears (7) pass through snap ring (6) lock ring in screw rod (2) periphery after being placed on screw rod (2), described driving spring (5) one end and nut (1) offset, the other end and semicircle anchor ear (7) offset, described semicircle anchor ear (7) offsets with thermal insulation barriers (3), described thermal insulation barriers (3) lost efficacy while disappearance, described driving spring (5) stretches and pushes two semicircle anchor ears (7) simultaneously, and two semicircle anchor ears (7) are along feeding steps at different levels (21) the mobile gap making up between nut (1) and fastening surface step by step.
6. multistage self-feed according to claim 5 gap makes up bolt, it is characterized in that: described feeding step (21) is provided with the first inclined-plane (211), the inner side of described semicircle anchor ear (7) is provided with the inclined-plane A(71 for coordinate slippage with the first inclined-plane (211)), described thermal insulation barriers (3) lost efficacy while disappearance, described driving spring (5) stretches and pushes two semicircle anchor ears (7) simultaneously, and the inclined-plane A(71 of two semicircle anchor ears (7)) move step by step along first inclined-plane (211) of feeding steps at different levels (21) gap making up between nut (1) and fastening surface.
7. make up bolt according to the multistage self-feed gap described in any one in claim 1 to 6, it is characterized in that: described thermal insulation barriers (3) is threaded with screw rod (2).
8. make up bolt according to the multistage self-feed gap described in any one in claim 1 to 6, it is characterized in that: be formed in one structure or described nut (1) of described nut (1) and screw rod (2) is threaded with screw rod (2).
9. multistage self-feed according to claim 7 gap makes up bolt, it is characterized in that: be formed in one structure or described nut (1) of described nut (1) and screw rod (2) is threaded with screw rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170332.4A CN103939445B (en) | 2014-04-25 | 2014-04-25 | Multistage self-feed gap makes up bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170332.4A CN103939445B (en) | 2014-04-25 | 2014-04-25 | Multistage self-feed gap makes up bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939445A CN103939445A (en) | 2014-07-23 |
| CN103939445B true CN103939445B (en) | 2016-05-18 |
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| CN201410170332.4A Active CN103939445B (en) | 2014-04-25 | 2014-04-25 | Multistage self-feed gap makes up bolt |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958578B (en) * | 2017-05-25 | 2022-08-19 | 宇星紧固件(嘉兴)股份有限公司 | Anti-theft screw cap |
| CN109250044B (en) * | 2018-09-18 | 2024-03-29 | 长江勘测规划设计研究有限责任公司 | Super-long weather-proof water surface photovoltaic platform system and installation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0922867A1 (en) * | 1997-12-09 | 1999-06-16 | T. Kato Co., Ltd. | Locking washer and locking apparatus using the same |
| CN2426216Y (en) * | 2000-06-22 | 2001-04-04 | 张瀛崙 | Check device for wire screw fastener in electric power equipment |
| CN2460783Y (en) * | 2001-02-14 | 2001-11-21 | 康燕春 | Stop nut special for liner tile |
| JP3858180B2 (en) * | 1995-12-05 | 2006-12-13 | 日本発条株式会社 | Shaft slide lock device |
| CN203035700U (en) * | 2013-01-04 | 2013-07-03 | 南京全信传输科技股份有限公司 | Captive screw capable of rebounding |
| CN203809460U (en) * | 2014-04-25 | 2014-09-03 | 湖南省金为型材有限公司 | Multi-stage self-feeding gap filling bolt |
-
2014
- 2014-04-25 CN CN201410170332.4A patent/CN103939445B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3858180B2 (en) * | 1995-12-05 | 2006-12-13 | 日本発条株式会社 | Shaft slide lock device |
| EP0922867A1 (en) * | 1997-12-09 | 1999-06-16 | T. Kato Co., Ltd. | Locking washer and locking apparatus using the same |
| CN2426216Y (en) * | 2000-06-22 | 2001-04-04 | 张瀛崙 | Check device for wire screw fastener in electric power equipment |
| CN2460783Y (en) * | 2001-02-14 | 2001-11-21 | 康燕春 | Stop nut special for liner tile |
| CN203035700U (en) * | 2013-01-04 | 2013-07-03 | 南京全信传输科技股份有限公司 | Captive screw capable of rebounding |
| CN203809460U (en) * | 2014-04-25 | 2014-09-03 | 湖南省金为型材有限公司 | Multi-stage self-feeding gap filling bolt |
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| CN103939445A (en) | 2014-07-23 |
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